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Popular Cobalt Drill Bits For Hardened Steel on Amazon
Details on the Best Cobalt Drill Bits For Hardened Steel
Bestseller No. 1
MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Index Storage Case, 1/16"-1/4"
- 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
Bestseller No. 2
BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal
- 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
Bestseller No. 3
Cobalt Drill Bit Set - 29Pcs M35 High Speed Steel Twist Drill Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics with Metal Index Storage Box, 1/16"-1/2"
- 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: 29 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"，17/64"，9/32"，19/64"，5/16"，21/64"，11/32"，23/64"，3/8"，25/64"，13/32"，27/64"，7/16"，29/64"，15/32"，31/64"，1/2", 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.
Bestseller No. 4
Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel Twist Jobber Metal Drill Bits 1/16"-3/8", with Plastic Index 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
Bestseller No. 5
MACXCOIP Cobalt Drill Bit Set, 29Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box, 1/16"-1/2"
- Various Sizes: 29 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", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64“, 3/8", 25/64", 13/32", 27/64", 7/16, 29/64, 15/32", 31/64", 1/2", 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 Jobber Length Drill Bit Kit for hardened steel with excellent cutting performance. 29 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 drill holders with size indexes and is packaged in a small, strong package for easy storage and sorting. If you have any questions, please refer to us and we will be happy to help you
Newest Cobalt Drill Bits For Hardened Steel
New
HeeHoo 10Pcs M35 Cobalt HSS Twist Drill Bits, 135° Split Point, Spiral Flute, Straight Shank, for Stainless Steel & Hard Metal (D8.7mm x F87mm x OAL121mm)
- Conquer Hard Metals with Ease – M35 cobalt HSS (HRC 62-66) and a 135° split point let you drill stainless steel and cast iron without walking or dulling bits mid-project.
- Pick Your Perfect Size – Choose from metric 0.5 mm to 13 mm, or request custom diameters. This M35 cobalt HSS set gives you exactly the bits your job demands.
- Reduced Friction, Faster Drilling – Spiral flute design and amber finish eject chips smoothly, keeping the bit cool so you work quicker without burning out your material.
- No Center Punch? No Problem. – The self-centering split point bites immediately on contact, saving you time and frustration—perfect for hand drills, press drills, or CNC machines.
- Built for Daily Abuse – Tough, wear-resistant edges stay sharp through repeated use, so you’re not constantly buying replacements—just grab and go for your next DIY or pro job.
New
1-14mm M42 Cobalt High Speed Steel Twist Drill Bit Set, for Hardened Steel, Stainless Steel & Cast Iron(9.8mm)
- Product Type: Single HSS M42 Twist Drill Bit. This is an individual drill bit sold as one piece, allowing for specific size replacement or purchase
- Premium Material: Made from M42 High Speed Steel containing 8% Cobalt. This material provides enhanced hardness and heat resistance for effective drilling performance
- Drill Bit Design: Features a 135-degree split point tip. This design helps to reduce walking on curved surfaces and allows for faster penetration with less pressure required
- Size & Application: Available in various sizes from 1mm to 14mm. Used for drilling into hardened steel, cast iron, stainless steel, as well as copper, iron, aluminum, wood, and other metals
- Performance: The M42 cobalt composition maintains sharpness and cutting ability when working with tough materials. Suitable for professional and DIY drilling tasks
New
GuardPro 60pcs Cobalt Number Size Drill Bit Set, 4341 High Speed Steel Drill Bit Set (#1-60) for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case
- Various Sizes: 60 sets of number size drill bits from #1 to #60 (0.228"-0.040" or 5.79mm-1.02mm), can meet more needs
- Features: round straight shank, self-centering design prevents walking, fully ground twist design ensures a drilling performance by decreasing friction, easily for drilling materials includs stainless steel, cast iron, alloy, wood and hard plastics.
- 135°Split Point: Featuring a 135-degree split point with a round straight shank, an intelligent self-centering design that prevents walking, fully ground twist design ensuring a cooler drilling performance by decreasing friction, The 60pcs impact drill bit set easily drills through a wide variety of materials.
- A Must For Professionals: Drill Bit Set Whether a professional woodworker, handyman, or construction worker, or you simply enjoy the occasional house project as a relaxing hobby, the GuardPro metal drill bit for steel are an excellent assortment for ensuring perfect holes and plugs!
- Quality Commitment: If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100% Satisfaction Guarantee for risk-free shopping!
New
6542 Cobalt High Speed Steel Twist Drill Bit Set 1-13mm for Stainless Steel & Alloy Metal(1mm(10PCS))
- Chip Removal Design: Smooth Chip Removal Spiral Large Groove Design with Large Chip Storage space Effectively Prevents the Accumulation of chips and helps Improve drilling Efficiency
- High Speed Steel Material: The drill bit is crafted from robust High Speed Steel 6542 for superior strength and performance in demanding metal drilling tasks
- Engineered Application: Designed for use in processing stainless steel, hardened steels and other difficult-to-machine steel parts with precision and effectiveness
- Material Compatibility: Suitable for drilling a range of materials including high-temperature alloys, certain metal alloys, high-strength steel and carbon fiber composites
- Performance Enhancement: Optimized for high speed drilling operations and features a cobalt alloy enhancement for extended tool life and improved heat resistance
New
10Pcs 4mm Spiral Center Point Woodworking Drill Bits 75mm Length for Home Garden Workshop Power Tools
- Precision Ground Drills: Precision ground drills with center point and two shoulder cutters for accurate drilling in woodworking projects
- Suitable Materials: For wood and artificial wood, including softwood, hardwood, plastic parts, and acrylic. Not for metal materials
- High Strength and Hardness: High strength and hardness for consistent performance in woodworking tasks
- Easy to Use: Easy to use, making it suitable for both woodworking enthusiasts and professional workers
- Full Grinding Blade: The full grinding blade is a must-have tool for efficient drilling in various woodworking applications