14 Best Drills for Stainless Steel in 2026
Drilling into stainless steel can be a real challenge. If you’ve ever struggled with bits that dull too fast or just can’t seem to cut through without overheating, you’re not alone. Many people find that regular drill bits just don’t stand up to stainless steel’s toughness and heat resistance. It’s frustrating when your tools fail midway through a project, causing delays and wasted effort.
But don’t worry, there are drill bits designed specifically for this tough material. Choosing the right ones can make all the difference, saving you time and giving you cleaner, more precise results. Whether you’re a DIY enthusiast or a professional, having the best bits on hand can take your work to the next level.
You’ll want drill bits made from cobalt or high-speed steel with cobalt for stainless steel’s toughness and heat resistance. Look for kits like BOSCH CO14B or the 21-piece toolant set with titanium coatings for durability and sharpness. Features like 135° split points and multi-flute spirals boost precision and chip removal. Sets with organized cases keep your tools safe and handy.
Keep going to discover top picks and what makes each ideal for stainless steel drilling.
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BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobal...
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MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jo...
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NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainle...
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Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stai...
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toolant Cobalt Drill Bit Set for Metal and Steel (Pro), Tita...
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BOSCH CO14B 14-Piece Cobalt Metal Drill Bit Set
- Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
- Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
- High-heat resistant bits – withstand high-temperature applications for extended periods of time
- Thick web-helix design – provides additional stability in tough applications
- Surface-hardened tip – penetrates tough abrasive materials
When working with tough metals like stainless steel or titanium, having the right drill bit makes all the difference. The BOSCH CO14B 14-Piece Cobalt Metal Drill Bit Set tackles these challenges with precision and durability. Crafted from M42 cobalt alloy with 8% cobalt, these bits are built to last much longer than standard ones.
Their high heat resistance helps prevent wear during heavy use, while surface-hardened tips maintain sharpness even on abrasive materials. This means you can drill smoothly and accurately without frequent replacements. The set covers sizes from 1/16 to 1/2 inch, offering versatility for various metalworking tasks.
Designed with split points and three-flat shanks, these bits provide better grip and reduce slipping, improving overall control. The included sturdy case keeps everything organized and easy to transport, ideal for both industrial and DIY settings.
Maintenance is straightforward—simply keep the bits clean and store them in the case to protect against damage and rust. This ensures your set stays ready for demanding projects whenever you need it.
Best for: Professionals and DIY enthusiasts who work with hard metals and require reliable, long-lasting drill bits for precise, heavy-duty drilling.
What We Like:
- M42 cobalt alloy with 8% cobalt offers exceptional durability and lifespan
- High heat resistance and hardened tips for effective drilling on abrasive metals
- Split point design and three-flat shanks for improved grip and accuracy
- Compact, durable case for organized storage and easy portability
Specification:
| Specification Title | Detailed Description |
|---|---|
| Material | M42 cobalt alloy with 8% cobalt |
| Number of Pieces | 14 |
| Size Range | 1/16 inch to 1/2 inch |
| Tip Design | Split point |
| Shank Type | Three-flat shank |
| Heat Resistance | High |
| Case Included | Sturdy, portable case |
| Intended Use | Metal drilling, including stainless steel, titanium, and cast iron |
Cobalt Drill Bit Set, 13Pcs with Storage Case
- Various Sizes: 13 sets of drill bits include 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", can meet more needs
- M35 Cobalt Drill Bit: The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless steel, iron castings, copper, aluminum and other soft metals as well as plastics, wood etc
- Quick and Efficient: The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip and twist design for faster cutting, self-centering to prevent walk-off and faster chip and particle removal
- HSS Drill Bit Set: HSS cobalt drill bit set for hardened steel with excellent cutting performance. 13 sets of drill bits for long term use. The inserts are hardened and polished for improved sharpness and precise cutting without wobbling
- Easy Storage: The drill set includes a drill case with size indexes and is packaged in a small package for easy storage and sorting. If you have any questions, please refer to us and we will be happy to help you
Tackle tough materials with ease using the Cobalt Drill Bit Set, 13Pcs with Storage Case. Designed to perform well on stainless steel, cast iron, and other hard metals, this set helps you drill smoothly without frequent bit changes. Its strong M35 cobalt alloy construction ensures the bits stay sharp and durable through demanding projects.
Each bit features a 135-degree point tip and spiral flutes that improve drilling accuracy by self-centering and efficiently removing chips. This design reduces wobbling and keeps your work precise, whether you’re working on metals, plastics, or wood. The variety of sizes from 1/16″ to 1/4″ covers many common drilling needs.
Maintenance is simple: after use, clean the bits and store them in the included compact case to prevent damage and loss. This organization helps keep your tools ready and portable for any job site. While the set is robust, keep in mind the size range may not fit all tasks, and heavy use could eventually wear the coating.
Overall, this cobalt drill bit set enhances your work quality by combining durability, precision, and convenient storage in one package.
Best for: Professionals and DIY enthusiasts needing durable, precise drill bits for tough metals and versatile materials.
What We Like:
- M35 cobalt alloy ensures long-lasting sharpness and strength
- 135-degree tip and spiral flutes improve accuracy and chip removal
- Compact storage case keeps bits organized and portable
Specification:
| Specification | Description |
|---|---|
| Number of Pieces | 13 |
| Material | M35 Cobalt Alloy |
| Tip Angle | 135 degrees |
| Flute Design | Spiral for efficient chip removal |
| Size Range | 1/16″ to 1/4″ |
| Included Storage | Compact case for easy organization |
| Suitable Materials | Metals, plastics, wood |
NordWolf 5-Piece M35 Cobalt Drill Bit Set
- 【High Quality】M35 Cobalt steel precision ground drill bits for extra durability and long lifetime
- 【Efficient Design】Stubby drill bits measure from 1.83 to 2.32-inch only, allowing access to hard-to-reach and tight spaces. 135° split point multi-blades drill tip for perfect self-centering and fast drilling
- 【Multi-Purpose Use】Suitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc. All drill bits come with one piece 1/4-inch hex shank compatible with standard and quick change chucks and drivers
- 【Popular Sizes】Includes imperial sizes: 3/32", 1/8", 3/16", 1/4", 5/16"
- 【Unique Packaging】Packed in special plastic box for easy storage, imprinted with drill bit sizes for easy identification. Sliding clip on backside of box for hanging on pegboards
When you need to drill through tough stainless steel or hardened metals, the NordWolf 5-Piece M35 Cobalt Drill Bit Set delivers reliable performance. Its durable M35 cobalt steel construction resists wear, letting you work confidently without frequent bit replacements. This set is designed to tackle hard materials that standard bits struggle with.
The stubby bits fit easily into tight or hard-to-reach spaces, making precision work simpler. The 135° split point ensures accurate, self-centering drilling, reducing bit walking and improving control. With 1/4″ hex shanks, these bits are compatible with both standard drill chucks and impact drivers, adding versatility to your toolbox.
Maintenance is straightforward thanks to the robust material and compact design, which help prevent damage during use. The included storage case keeps bits organized and protected, so they’re ready whenever you need them.
This set is ideal for professionals and DIY enthusiasts who require durable, high-performance drill bits for challenging metalwork, especially in confined areas.
Best for: Professionals and DIY users needing reliable drill bits for stainless steel and hardened metals in tight spaces.
What We Like:
- High-quality M35 cobalt steel for long-lasting durability
- Stubby design with 135° split point for precise, self-centering drilling
- 1/4″ hex shanks fit standard chucks and impact drivers
- Compact size eases use in confined spaces
- Sturdy storage case for organization and protection
Specification:
| Specification | Details |
|---|---|
| Material | M35 cobalt steel |
| Number of Bits | 5 |
| Bit Sizes | 3/32″, 1/8″, 5/32″, 3/16″, 5/16″ |
| Tip Angle | 135° split point |
| Shank Type | 1/4″ hex |
| Compatible Tools | Standard drill chucks, impact drivers |
| Design | Stubby bits for tight spaces |
| Storage | Included sturdy case |
Cobalt Drill Bit Set 99Pcs with Storage Case
- Cobalt M35 Material: High cost, but hardness is up to 67, cut faster and has a long life, up to 12 times compared with the average HSS titanium coated bit
- Hardened Full Grinding Process: Increases wear resistance, sharp and durable, used for stainless steel, cast iron, zinc alloy, titanium, aluminum and hard metal
- Packaging: Hard and thick plastic box, drills bagged for compartmentalized storage, reasonable design, well secured package
- Convenient Access: Various sizes are placed in different compartments of the plastic box, and the corresponding sizes of different drills are printed on the bottom of the lid, making it very convenient to access
- Various Sizes: 16Pcs 1/16 in, 16Pcs 5/64 in, 15Pcs 3/32 in, 10Pcs 7/64 in, 10Pcs 1/8 in, 8Pcs 9/64 in, 8Pcs 5/32 in, 3Pcs 11/64 in, 3Pcs 3/16 in, 2Pcs 13/64 in, 2Pcs 7/32 in, 2Pcs 1/4 in, 2Pcs 5/16 in, and 2Pcs 3/8 in
Tackling tough metals like stainless steel can be challenging without the right tools. The Cobalt Drill Bit Set 99Pcs with Storage Case is designed to meet this challenge head-on. Crafted from durable M35 cobalt steel, these bits resist wear and last significantly longer than typical drill bits.
This set includes 99 pieces in various sizes, giving you the flexibility to handle a wide range of projects. The sturdy storage case keeps everything organized, so you can quickly find the size you need without hassle. This design helps maintain an efficient workflow whether you’re on the job or working at home.
To get the most out of these bits, it’s important to control your drill speed between 200 and 1000 RPM. Using cutting fluid will also help prevent overheating, preserving the sharpness and effectiveness of each bit over time. This maintenance routine ensures consistent, clean drilling through hard metals.
These cobalt drill bits excel in durability and precision, making them ideal for professionals and DIY enthusiasts working with stainless steel, cast iron, and other tough materials. While they require some care during use, the performance benefits are clear.
Best for: Professionals and DIY enthusiasts needing reliable, long-lasting drill bits for drilling hard metals.
What We Like:
- Made from M35 cobalt steel for extended durability
- Wide range of sizes for versatile metal drilling
- Sturdy, labeled storage case for easy organization
Specification:
| Specification Title | Detailed Description |
|---|---|
| Material | M35 cobalt steel |
| Number of Pieces | 99 pieces |
| Suitable Materials | Stainless steel, cast iron, other hard metals |
| Storage Case | Durable plastic with labeled compartments |
| Recommended Drill Speed | 200 – 1000 RPM |
| Maintenance | Use cutting fluid to prevent overheating |
toolant Cobalt Drill Bit Set Titanium Coated (21pcs)
- toolant Cobalt Drill Bit Set Pro - A metal drill bit set for steel and metal. Consisting of 21 titanium aluminum nitride coated cobalt drill bits with bullet point tips, offers exceptional performance specifically for drilling through metal.
- 21-piece Cobalt Drill Bits Set - Includes metal drill bits: 1/16"(*2), 5/64"(*2), 3/32"(*2), 7/64"(*2), 1/8"(*2), 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 5/16", 3/8", 1/2".
- Titanium Aluminum Nitride Coating - Increases surface hardness to 89HRC with outstanding heat-resistance, so your drill bit cuts fast and stay sharp.
- Specifically Crafted Bullet Point - Sharp and self-centering tip minimize wandering and provides precise and accurate drilling. TOOLANT Pro 21-pack is meticulously engineered to excel in demanding heavy-duty scenarios.
- 90 Days Warranty - In the event that you are not completely satisfied with your purchase for any reason, please reach out to us, and we will gladly provide a 100% refund or replacement.
Tackling hardened metals and stainless steel requires drill bits that won’t dull quickly or lose precision. The toolant Cobalt Drill Bit Set Titanium Coated (21pcs) meets this need with durable cobalt bits enhanced by a titanium aluminum nitride coating. This coating improves heat resistance, so the bits stay sharp even during extended drilling sessions.
Each bit features bullet point tips for precise, self-centering drilling that minimizes wandering. This design helps you start holes accurately without slipping, making your work faster and more efficient. The 3-flat shank ensures a firm grip in your drill chuck, preventing slippage and improving control.
The drill bits cover a useful range of sizes from 1/16″ to 1/2″. Their 135-degree cutting angle is optimized to handle tough metals smoothly, reducing the effort needed to penetrate hard surfaces. Maintenance is straightforward—clean after use to preserve the coating and sharpness.
While ideal for metal and steel, this set is less suited for wood or masonry tasks. Some sizes are duplicated, which may not fit every project requirement.
Best for: Professionals and DIY enthusiasts who require reliable, precise drill bits for heavy-duty metal and stainless steel work.
What We Like:
- Titanium aluminum nitride coating enhances heat resistance and sharpness longevity
- Bullet point tips provide accurate, self-centering drilling
- 3-flat shank design ensures a secure grip in drill chucks
- Wide size range from 1/16″ to 1/2″ covers common metal drilling needs
- 135-degree cutting angle efficiently handles hardened metals
Specification:
| Specification Title | Detailed Description |
|---|---|
| Drill Bit Material | Cobalt steel with titanium aluminum nitride coating |
| Number of Pieces | 21 |
| Size Range | 1/16″ to 1/2″ |
| Tip Type | Bullet point (self-centering) |
| Shank Type | 3-flat |
| Cutting Angle | 135 degrees |
| Intended Use | Hardened metals and stainless steel |
13pcs M35 Cobalt Drill Bits Set with Case
- 【Cost-effective combination】: Pro edge 13pcs jobber drill bits set includes 13 sizes from 1/16" to 1/4" in 1/64" increments.With an average price per bit lower than the M35 Jobber Drill Bits market average price.
- 【M35 HSS】Pro edge 13pcs jobber drill bits set made of M35 material, which contains 5% cobalt, has higher wear resistance and heat resistance(3-5x Longer Life than M2 HSS Drill Bits).
- 【135° Split Point & Twist Design】: The 135 degree design reduces the pressure required for the drill bit to penetrate materials, making it more suitable for hard materials and helping the drill bit self locate and not easily shake, ensuring machining accuracy. Twisted design allows for faster removal of debris.
- 【Can Be Widely Used】: Suitable for cutting stainless steel, cast iron parts, copper, aluminum, and other soft metals, as well as plastics, wood, etc., whether it is woodworking, metal processing, home maintenance, or DIY, it can be easily handled.
- 【Purchase Benefits】: The Jobber drill bits set includes a sturdy and aesthetically pleasing packaging box for easy storage and classification. Make sure you pull up the tab on the top of the case when opening to avoid damage. If you have any questions, please contact us and we are happy to assist you.
The 13pcs M35 Cobalt Drill Bits Set with Case is designed for tackling tough materials like stainless steel with ease. These drill bits use M35 high-speed steel infused with 5% cobalt, giving them a longer lifespan than standard bits. This means less frequent replacements and more reliable performance during demanding projects.
Each bit features a 135-degree split point tip, which reduces pressure and helps you drill more accurately. The twisted design efficiently clears debris, preventing overheating and extending bit life. This makes the set well-suited for metals, plastics, and wood, providing versatility for various tasks.
Maintenance is simple but important. Using the right drill speed and cooling methods will help maintain the sharpness and durability of the bits. The included sturdy case keeps the bits organized and protected, making storage and transport hassle-free.
With sizes ranging from 1/16″ to 1/4″ in 1/64″ increments, this set covers many common drilling needs. While it’s limited to smaller diameters, it excels at precision work requiring durability and consistent results.
Best for: DIY enthusiasts, metalworkers, and home maintenance users needing durable drill bits for stainless steel and other tough materials.
What We Like:
- Durable M35 cobalt steel for extended bit life
- 135-degree split point improves accuracy and reduces effort
- Efficient debris removal with twisted bit design
- Wide size range for precision drilling
- Sturdy case for easy organization and storage
Specification:
| Specification Title | Detailed Description |
|---|---|
| Material | M35 high-speed steel with 5% cobalt |
| Number of Pieces | 13 drill bits |
| Size Range | 1/16″ to 1/4″ in 1/64″ increments |
| Tip Design | 135-degree split point |
| Suitable Materials | Stainless steel, metals, plastics, wood |
| Storage Case | Sturdy plastic case included |
| Intended Use | Precision drilling in tough materials |
1/4 to 3/4 Inch M2 High Speed Step Drill Bit
- [M2 HSS]: Cuts A LOT MORE CLEAN holes and much EASIER than average step bits. In general, M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving durability. Our additional Vacuum heat treatment and Nitride surface hardening treatment make the performance even better.
- [Non-stop]: Our Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle.
- [Easier | Faster | Cleaner]: With our high-accuracy CNC processing and several optimized design details over the years, our design cuts EASY, FAST and CLEAN, outperforming the average ones on the market.
- [Heavy duty]: Cuts holes on Stainless steel, Hardened Metal, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. Up to 12ga /2.7mm thickness for Stainless steel.
- [Extra Thick]: Made for extra thick Material/Panel/Plate. Stepped cone head and 4 sprial flutes design makes the penetration and drilling much easier and faster.
When working with thick stainless steel or other tough materials, drilling different hole sizes can be challenging. The Jerax 1/4 to 3/4 Inch M2 High Speed Step Drill Bit simplifies this task by letting you drill multiple sizes with one bit. Its durable M2 high-speed steel construction with added tungsten and molybdenum helps it cut smoothly through up to 12-gauge stainless steel.
The drill bit’s polished steps and clear size markings make it easy to select the right hole diameter without swapping tools. Its spiral flute and stepped cone head design provide fast, clean penetration while reducing the effort required. This means less wear on your drill and better control during use.
Maintenance is straightforward thanks to the nitride surface hardening and titanium aluminum nitride finish, which protect the bit and extend its lifespan. The 118-degree cutting angle ensures precise drilling and consistent results, making it ideal for demanding projects.
This step drill bit is designed for professionals and DIY users who need reliable, versatile tools for thick and tough materials. It’s a practical solution for creating multiple hole sizes quickly without changing bits.
Best for: Professionals and DIY enthusiasts needing a versatile, durable drill bit for multiple hole sizes in tough materials like stainless steel.
What We Like:
- Durable M2 high-speed steel with tungsten and molybdenum for smooth cutting
- Polished steps with clear markings for easy size selection
- Spiral flute and stepped cone head for fast, clean drilling
- Titanium aluminum nitride finish extends bit life
- Precise 118-degree cutting angle for consistent performance
Specification:
| Specification | Description |
|---|---|
| Material | M2 High-Speed Steel with Tungsten and Molybdenum |
| Hole Size Range | 1/4 to 3/4 Inch |
| Maximum Stainless Steel Thickness | Up to 12-gauge |
| Cutting Angle | 118 degrees |
| Surface Treatment | Titanium Aluminum Nitride Finish |
| Design Features | Spiral Flute, Stepped Cone Head |
| Markings | Polished Steps with Clear Size Indicators |
| Intended Use | Drilling multiple hole sizes in thick, tough materials |
Step Drill Bit Set 5PCS Titanium Coated
- 【50 Sizes in 5 Bits for Ultimate Versatility】One set does it all. Get 50 most-needed hole sizes from just 5 step bits, eliminating the need for a bulky drill bit collection
- 【Titanium-Coated HSS for Extreme Hardness】Made of high-speed steel with titanium coating, these bits resist heat and abrasion, effortlessly drilling through stainless steel, iron, and hard metals
- 【Self-Centering Tip for Precise Starts】The 118° split point prevents bit slippage, ensuring pinpoint accuracy and cleaner holes from the very start
- 【Wide Compatibility on Various Materials】The step drill bit for metal, stainless steel, aluminum, plastic, and wood. Feel confident drilling into anything—your DIY projects just got easier
- 【Protected in an Aluminum Case】Your step drill bit set stays organized and safe in a sturdy, portable aluminum case (6"x4.45"x1.7")
Experience the convenience of a versatile drill bit set designed to tackle multiple materials with ease. The Step Drill Bit Set 5PCS Titanium Coated is engineered to provide clean, precise holes in stainless steel, metal, plastic, and wood. Its design tackles the common problem of slipping and uneven drilling, making your projects smoother and more efficient.
Each bit features a 118° split point that prevents slipping, helping you create accurate holes every time. The titanium coating plays a crucial role in reducing heat buildup and wear, which extends the life of each bit. This means you spend less time replacing worn tools and more time focusing on your work.
The straight flute design supports efficient cutting, though it may require extra attention when drilling deeper holes to clear chips effectively. After use, cleaning and storing the bits in the included compact aluminum case keeps them protected and organized, ready for your next job.
While the set includes only five bits and may not cover very specialized or large hole sizes, it’s an excellent choice for everyday drilling tasks. Over time, the titanium coating might wear off with heavy use, so routine maintenance and care will help maintain performance.
Best for: Professionals and DIY enthusiasts who need a durable, multi-material drill bit set for precise and reliable drilling.
What We Like:
- Titanium coating reduces heat and wear, extending bit life
- 118° split point ensures clean, slip-free drilling
- Compact aluminum case for neat and portable storage
Specification:
| Specification Title | Detailed Description |
|---|---|
| Set Size | 5 pieces |
| Material | High-speed steel with titanium coating |
| Hole Sizes Covered | 50 sizes |
| Point Angle | 118° split point |
| Flute Type | Straight flute |
| Storage Case | Compact aluminum case |
NEIKO 3-Piece Spiral Step Drill Bit Set
- PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal.
- STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean.
- SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 31 step sizes, each hole made with these step bits will be precise.
- QUICK-CHANGE: The 1/4-inch hex shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools.
- INCLUDES: Each bit set comes with 3 drill bits of a combined 31 sizes to add to your drilling arsenal: 13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch).
Looking for a drill bit set that handles tough materials without hassle? The NEIKO 3-Piece Spiral Step Drill Bit Set makes drilling through stainless steel, metal, plastic, and wood straightforward and precise. Its multi-step design allows you to create various hole sizes with just one bit, reducing the need to switch tools constantly.
Each bit is crafted from high-speed steel and coated with titanium nitride, enhancing durability and resistance to wear. The split point tip improves cutting speed and accuracy by preventing the bit from wandering when starting a hole. This helps you work faster and with more control.
The two-flute spiral design efficiently clears debris from the hole, ensuring clean cuts and reducing heat buildup. The 1/4-inch hex shank fits impact-ready tools for quick bit changes and steady grip, making your drilling process smoother and more efficient.
To maintain optimal performance, handle the bits carefully and store them properly to protect the coating. Regular cleaning after use will also help extend their life and keep your work precise.
Best for: DIY enthusiasts, metalworkers, and professionals who need versatile, durable drill bits for clean, accurate holes in various materials.
What We Like:
- Durable high-speed steel with titanium nitride coating
- Split point tip enhances cutting speed and precision
- Two-flute spiral design clears debris effectively
- 1/4-inch hex shank compatible with impact tools for quick bit changes
Specification:
| Specification Title | Detailed Description |
|---|---|
| Set Size | 3 pieces |
| Step Sizes | Total of 31 step increments per bit |
| Material | High-speed steel with titanium nitride coating |
| Tip Design | Split point tip for faster, accurate drilling |
| Flute Design | Two-flute spiral for efficient debris removal |
| Shank Type | 1/4-inch hex shank compatible with impact-ready tools |
Cobalt Drill Bit Set 15Pcs with Storage Case
- M35 Cobalt Drill Bit: Premium High Speed Steel M35 (Cobalt 5%) offers superior heat resistance and greater hardness compared to ordinary drill bits. It can extend the tool's service life when drilling hard materials.
- 135° Split Point Design: The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip with round straight shank, self-centering to prevent walk-off, make drilling precise and faster.
- Efficient Drilling: Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance.
- Various Sizes: 15 sets of drill bits include 1/16"x2pcs, 5/64"x2pcs, 3/32"x2pcs, 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 1/4", 5/16", 3/8", can meet more needs.
- Widely Used: M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods.
Experience precision and durability with this Cobalt Drill Bit Set, designed to tackle hardened metals like stainless steel and cast iron. These bits are crafted from high-speed steel alloyed with 5% cobalt, which enhances heat resistance and prolongs tool life. This means you can drill longer and harder without worrying about bit wear or overheating.
The 135° split point tip ensures accurate, walk-off-free drilling, helping you maintain control on tough surfaces. The fully ground twist design promotes efficient chip removal and keeps the bits cooler, improving performance during extended use. Sizes range from 1/16″ to 3/8″, neatly stored in an indexed case for fast selection and organized storage.
Maintenance is simple—clean the bits after use and store them in the sturdy case to protect against damage and corrosion. While the gold oxide coating may wear with heavy use, the underlying cobalt steel maintains strength and precision. Keep in mind, the round shank design suits most standard chucks but may not fit specialized ones.
This set is perfect for both professionals and DIY enthusiasts who need reliable, heat-resistant drill bits for precision work on tough materials. It offers a balance of durability and functionality for consistent, professional results.
Best for: professionals and DIY users requiring durable, heat-resistant drill bits for precise drilling in hardened metals.
What We Like:
- Made from premium M35 cobalt high-speed steel with 5% cobalt content
- 135° split point tip for precise, walk-off-free drilling
- Fully ground twist design for efficient chip removal and cooling
- Indexed storage case for easy organization and quick access
Specification:
| Specification Title | Detailed Description |
|---|---|
| Material | M35 high-speed steel with 5% cobalt |
| Number of Pieces | 15 pieces |
| Bit Sizes | 1/16″ to 3/8″ (various sizes included) |
| Tip Angle | 135° split point |
| Coating | Gold oxide coating |
| Shank Type | Round |
| Storage Case | Indexed, sturdy plastic case |
13pcs M35 Cobalt Drill Bit Set with Case
- Specifications Included: The cobalt drill bit has a total of 13pcs: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", you can choose the corresponding combination according to your needs
- Containing 5% Cobalt:The M35 cobalt drill is made of high-quality M35 cobalt steel, which has a hardness far exceeding that of ordinary high-speed steel drill bits. Specially designed for hard materials such as stainless steel, alloy steel, cast iron, etc
- 135° Split Points: The 135 degree precision grinding self centering pointed design can easily cut into the surface of the material. The precise spiral groove design ensures the fast and smooth discharge of iron chips, effectively preventing the drill bit from getting stuck or broken
- Versatile Application: The M35 drill bit set can be used in cutting stainless steel, cast iron, copper, aluminum and other soft metals, as well as plastic, wood and other material scenarios
- Precision Packaging: Each drill bit has a corresponding location for storage. Make your access orderly and more convenient。 At the same time, if you have any questions about the product, you can contact us at any time, and we will solve them for you as soon as possible
Tackle tough materials with ease using the 13pcs M35 Cobalt Drill Bit Set with Case. These drill bits are designed to deliver precision and durability when working with hard metals like stainless steel and cast iron. The high-quality M35 cobalt steel composition ensures your tools stay sharp and reliable through demanding tasks.
The 135° split point design helps the bit stay centered, reducing walking and improving accuracy. Spiral flutes with three cutting edges efficiently remove chips, keeping your work smooth and preventing overheating. This thoughtful design extends bit life and maintains consistent performance.
Maintenance is simple with the included indexed case, keeping each bit organized and protected from damage. This ensures your drill bits are always ready for use and easy to find. The size range from 1/16″ to 1/4″ covers a variety of small to medium-sized drilling needs.
While this set excels with hard metals, the smaller sizes require careful handling to avoid breakage. The limited size range might not cover larger hole drilling, but it’s a dependable choice for many precision projects.
Best for: Professionals and DIY enthusiasts needing durable, precise drill bits for hard metals like stainless steel and cast iron, as well as softer materials.
What We Like:
- Made from tough M35 cobalt steel for lasting sharpness
- 135° split point reduces walking and improves accuracy
- Efficient chip removal with spiral flutes and three cutting edges
- Comes in a sturdy indexed case for easy storage and organization
Specification:
| Specification | Description |
|---|---|
| Material | M35 High-Speed Steel with 5% Cobalt |
| Number of Pieces | 13 bits with indexed storage case |
| Size Range | 1/16″ to 1/4″ (1.6mm to 6.35mm) |
| Point Angle | 135° split point for self-centering |
| Flute Design | Spiral flutes with three cutting edges |
| Intended Use | Stainless steel, cast iron, alloy steel, softer materials |
M35 Cobalt Drill Bit Set 20PCS with Case
- 【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.
- 【SIZE】1/16x2, 5/64x2, 3/32x2, 7/64x2, 1/8x2, 9/64, 5/32, 11/64, 3/16x2, 7/32, 1/4, 5/16, 3/8, 1/2 inch bits; Comes in plastic storage case for easy storage
- 【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Ti Surface and 3-Flat Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.
- 【PROFESSIONAL AND WIDELY USED】M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals. Not suitable for glass or ceramic materials. Pay attention to speed, pressure and heat control when drilling.
- 【SERVICE】If you have any problem with our metric drill bit set or are not satisfied with the product, please feel free to contact WildBossy.
Tackle tough materials with confidence using the M35 Cobalt Drill Bit Set 20PCS with Case. Designed to handle stainless steel, cast iron, and other hard metals, these bits deliver precise, clean drilling without slipping. Their robust construction means you spend less time replacing worn-out bits and more time on your projects.
Crafted from M35 cobalt steel with added molybdenum, these drill bits reach a hardness of up to 67 Rockwell. This ensures they stay sharp longer and resist damage during heavy use. The 135° split point design keeps bits from wandering, while the spiral flutes efficiently clear debris, preventing overheating.
Maintenance is straightforward: controlling speed and pressure during drilling reduces heat buildup and extends bit life. The titanium coating helps minimize corrosion and wear, keeping performance steady over time. The 3-flat shank design provides a secure grip in your drill chuck, enhancing control and accuracy.
This set covers sizes from 1/16″ to 1/2″, making it versatile for automotive, construction, and home improvement tasks. The included case organizes your bits neatly, though it offers moderate protection compared to metal cases. Proper care ensures these bits remain a reliable part of your toolkit.
Best for: professionals and DIY enthusiasts who need durable, high-performance drill bits for tough materials like stainless steel, cast iron, and hardened steel.
What We Like:
- High hardness for long-lasting durability and efficient drilling.
- Titanium coating reduces heat and corrosion for extended bit life.
- 135° split point and spiral flute design prevent walking and improve chip removal.
- 3-flat shank ensures a secure, stable grip in the drill chuck.
- Wide size range suits diverse applications.
Specification:
| Specification | Description |
|---|---|
| Material | M35 cobalt steel with molybdenum |
| Hardness | Up to 67 Rockwell |
| Point Angle | 135° split point |
| Coating | Titanium |
| Shank Type | 3-flat shank |
| Size Range | 1/16″ to 1/2″ |
| Number of Pieces | 20 bits |
| Storage Case | Plastic case |
HIDOTOL 13 PCS Cobalt Drill Bit Set M35
- High Quality Material - Premium High Speed Steel M35 (Cobalt 5%) provide extended tool life compared to ordinary drill bits when drilling hard materials.
- Characteristics - 135° split point with round straight shank, self-centering prevent walking, make drilling precise and faster. Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance.
- Widely Used - M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods.
- Specifications - Set of 13pcs jobber length drill bits includes: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4.
- Organized Holder - The whole drill bit set are kept in Rose plastic case with size index holder for easy storage and organizing.
When facing tough materials like stainless steel or titanium, ordinary drill bits can quickly wear out or overheat. The HIDOTOL 13 PCS Cobalt Drill Bit Set M35 offers a reliable solution for these challenges. Its M35 high-speed steel with 5% cobalt keeps the bits cool and durable during heavy use.
The 135° split point design helps the drill bits start quickly without slipping, making your work more precise and efficient. This design reduces walking, so you get cleaner holes every time. The fully ground twist shape also clears debris well, cutting down on friction and wear.
This set covers sizes from 1/16″ to 1/4″, making it versatile for many projects. It comes in a rose plastic case that keeps everything organized and easy to transport. Regular cleaning and proper storage will help maintain the sharpness and performance of the bits.
While ideal for demanding tasks, the smaller bits require careful handling to avoid breakage. The plastic case is convenient but may not withstand heavy job site conditions as well as metal options.
Best for: Professionals and DIY enthusiasts who need durable, high-performance drill bits for tough materials like stainless steel, titanium, and hardened metals.
What We Like:
- Made from M35 high-speed steel with 5% cobalt for heat resistance and longevity
- 135° split point design prevents walking and ensures fast, precise drilling
- Fully ground twist design improves debris removal and reduces friction
- Size range from 1/16″ to 1/4″ covers most drilling needs
- Compact rose plastic case for organized storage and easy transport
Specification:
| Specification Title | Detailed Description |
|---|---|
| Material | M35 high-speed steel with 5% cobalt |
| Bit Sizes | 13 pieces, ranging from 1/16″ to 1/4″ |
| Point Angle | 135° split point |
| Design | Fully ground twist for improved debris clearance |
| Storage Case | Rose plastic case, compact and portable |
| Intended Use | Drilling stainless steel, titanium, hardened metals |
| Heat Resistance | High, due to cobalt content |
toolant Four Spiral Flute Cobalt Step Drill Bit
- FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter!
- TiAlN COATING - With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.
- M35 COBALT HSS STEP DRILL - Prefect for 1/8"(3mm) thick Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.
- 12 STEP SIZES - Includes 3/16",1/4", 5/16", 3/8", 1/2", 9/16", 5/8", 11/16", 13/16", 7/8".
- WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement. If the hex shank snap off, please contact us for replacement.
When working with tough materials like stainless steel, the toolant Four Spiral Flute Cobalt Step Drill Bit delivers reliable performance and precision. Its M35 cobalt steel construction with TiAlN coating provides excellent hardness and heat resistance, helping you drill smoothly without excessive wear.
The bit’s 12-step design covers sizes from 3/16″ to 7/8″, reducing the need for multiple drill bits. Four spiral flutes and a 135-degree cutting angle ensure fast, clean cuts and minimize bit wobble. This design makes drilling easier on metals, plastics, and wood alike.
Maintenance is straightforward thanks to its durable coating, which extends the bit’s lifespan and keeps it sharp longer. The 1/4″ hex shank fits impact drivers securely, offering stable control during use. However, the maximum diameter of 7/8″ limits its use for larger holes.
This step drill bit is ideal for those needing a versatile, efficient tool that handles a variety of materials with precision. It performs best in moderate thicknesses but may struggle with very thick or hardened metals.
Best for: Professionals and DIY enthusiasts requiring a durable, multi-size drill bit for precise holes in metal, plastic, and wood.
What We Like:
- Durable M35 cobalt steel with heat-resistant TiAlN coating
- 12-step sizes reduce the need for multiple bits
- Four spiral flutes and 135-degree angle ensure smooth drilling
- Fits 1/4″ hex shank for impact driver compatibility
- Effective across various materials including metal, plastic, and wood
Specification:
| Specification Title | Detailed Description |
|---|---|
| Material | M35 cobalt steel with TiAlN coating |
| Hardness | 89 HRC |
| Step Sizes | 12 steps, ranging from 3/16″ to 7/8″ |
| Cutting Angle | 135 degrees |
| Flutes | Four spiral flutes |
| Shank Type | 1/4″ hex shank, impact driver compatible |
| Suitable Materials | Stainless steel, metal, plastic, wood |
| Maximum Hole Diameter | 7/8″ |
Factors to Consider When Choosing a Drill for Stainless Steel
When choosing a drill for stainless steel, you need to focus on the material composition and the type of coating on the drill bit. The cutting angle and heat resistance play a big role in performance and durability.
Don’t forget to take into account the shank design, as it affects stability and ease of use.
Material Composition Importance
Why does the material composition of your drill bit matter so much for stainless steel? It directly impacts how efficiently you can cut through tough stainless steel and how well the bit withstands the heat generated. Drill bits made from cobalt alloys like M35 or M42 are your best bet because they offer superior hardness and heat resistance compared to regular HSS bits.
The higher the cobalt content, the more durable and long-lasting your bit will be during heavy-duty drilling. This alloy choice also affects how smoothly you drill and the quality of the hole you create. Plus, the right material constitution boosts resistance to wear, chipping, and deformation—essential when working with stainless steel’s high tensile strength.
Choosing the right bit material ensures better performance and durability.
Drill Bit Coating Types
How do drill bit coatings impact your stainless steel projects? Choosing the right coating can dramatically boost your drilling efficiency and bit lifespan. Titanium nitride (TiN) and titanium aluminum nitride (TiAlN) coatings reduce friction and heat buildup, letting you drill faster without wearing out the bit quickly.
If you need extra durability, cobalt-coated bits made from M42 or M35 alloys excel at handling hardened stainless steel. These coatings also improve corrosion resistance and help the bit withstand high temperatures, critical for tough jobs.
Cutting Angle Significance
Choosing the right drill bit coating sets you up for success, but the cutting angle plays an equally important role in your stainless steel projects. A 135-degree cutting angle is ideal because it balances cutting efficiency with tool durability, helping you drill cleaner holes. Using a sharper angle like 118 degrees can wear down your bit faster and reduce its lifespan, especially on tough stainless steel.
The larger angle also improves chip removal, reducing the chance of your workpiece binding during drilling. This means you’ll maintain precision and sharpness over longer jobs, avoiding unnecessary tool replacements. Staying consistent with the correct cutting angle helps minimize heat buildup and wear, so you can get through your stainless steel tasks smoothly and efficiently.
Heat Resistance Factors
When drilling stainless steel, you’ll need a bit that can handle intense heat without losing its edge. Opt for drill bits with high cobalt content, like M35 or M42 alloys, since they offer superior heat resistance. Coatings such as TiAlN further boost your bit’s ability to withstand high temperatures, reducing wear.
Choose a 135-degree split point tip to minimize friction by enabling a precise, self-centering entry. Always use proper lubrication or cutting fluid to cut down heat buildup and extend your drill bit’s life. Additionally, keep your drilling speed low to prevent overheating, which can damage both the bit and the material.
Shank Design Benefits
Since stainless steel demands high torque and precision, selecting the right shank design is crucial to keep your drill bit secure and stable. A straight shank offers a firm grip in the chuck, minimizing slippage during tough drilling jobs. If you want quicker bit changes, hex shanks work great with quick-change chucks and impact drivers, boosting your efficiency.
Three-flat shanks prevent slipping and reduce wobble, helping you maintain accuracy. Choosing a shank with a larger diameter improves stability and cuts down vibration when drilling heavy-duty stainless steel.
Also, matching your shank design to your tool’s chuck type ensures proper alignment and maximizes power transfer, resulting in cleaner, more precise holes. Paying attention to these shank benefits will make your stainless steel drilling smoother and more reliable.
Size Range Selection
A well-selected size range for your drill bits lets you tackle a variety of hole diameters in stainless steel without constantly swapping sets. You’ll want a set that includes both small and large diameters, so you can handle everything from precision holes to wider cuts efficiently. Larger bits demand more power and control, so be sure your drill can manage them smoothly.
Choosing bits with clearly marked sizes helps you quickly identify the right one, reducing mistakes and speeding up your workflow. A thorough size range also means you won’t have to buy extra bits later, saving you time and money. Opting for versatility in your drill bit sizes ensures you’re prepared for any stainless steel project that comes your way.
Frequently Asked Questions
How Do I Maintain and Sharpen Cobalt Drill Bits for Stainless Steel?
To maintain and sharpen your cobalt drill bits, clean them after each use to remove debris and metal shavings. Use a bench grinder or a specialized drill bit sharpener, holding the bit at the correct angle (usually 118-135 degrees) to restore the cutting edge. Keep cooling oil nearby to prevent overheating while sharpening.
Regularly check for wear or damage, and store the bits in a dry place to avoid rust and prolong their life.
What Safety Precautions Should I Take When Drilling Stainless Steel?
Did you know that 60% of drilling accidents happen due to ignoring basic safety steps? When drilling stainless steel, always wear safety goggles to protect your eyes from metal shards. Use gloves to shield your hands, and secure the workpiece firmly.
Keep your drill bit sharp and use cutting fluid to reduce heat. Work at a steady speed to avoid overheating, and never rush—stainless steel’s toughness demands patience and care.
Can Cordless Drills Effectively Handle Stainless Steel Drilling?
Yes, cordless drills can effectively handle stainless steel drilling if you use the right drill bits and settings. You’ll want high-quality cobalt or carbide-tipped bits and a low speed to prevent overheating. Make sure to apply steady pressure and use cutting oil to keep the bit cool.
With these precautions, your cordless drill will perform well, giving you precise holes without damaging the material or your tool.
How Does Drill Speed Affect Performance on Stainless Steel?
Drill speed is the heartbeat of your performance on stainless steel. If you go too fast, you risk overheating and dulling the bit; too slow, and you waste time without making progress. You want a moderate speed—usually between 500 to 1500 RPM—so you can cut smoothly without burning.
Keep steady pressure, and let the drill do the work. Remember, slow and steady wins the race with tough metals like stainless steel.
Are There Alternatives to Cobalt Drill Bits for Stainless Steel?
Yes, you can use alternatives to cobalt drill bits for stainless steel. Carbide-tipped drill bits are a great choice since they stay sharp longer and handle heat well.
High-speed steel (HSS) bits with a titanium or black oxide coating also work decently for softer grades of stainless steel. Just remember to use proper speed and lubrication to avoid overheating and dulling your bits quickly.
Conclusion
When drilling stainless steel, using the right bit is essential—did you know cobalt bits last up to five times longer than standard bits? Choosing the right drill set, like those with M35 cobalt, guarantees durability and precision.
Remember to take into account bit material, coating, and size for your project. With the options listed, you’re set to tackle stainless steel confidently and efficiently.
Don’t settle for less when quality makes all the difference!
