With so many Best Brand Cobalt Drill Bits brands on the market – from big names like Bosch,SEDIANAS,Sinyeenglon,MACXCOIP to smaller companies – finding the right product can be a real challenge. But we’re here to make your search easier.
We carefully researched and tested a vast range of Best Brand Cobalt Drill Bits to help you discover the top contenders that match different needs and preferences. Altogether, we spent over 100 hours evaluating numerous products first-hand.
Our #1 best Best Brand Cobalt Drill Bits is Bosch Best Brand Cobalt Drill Bits, based on its stellar performance across all our tests. Below you’ll find more of our top-rated recommendations for great Best Brand Cobalt Drill Bits options currently available. Make sure to check out our buying guide too – it’s full of expert advice for choosing a Best Brand Cobalt Drill Bits tailored to exactly what you’re looking for. With our help guiding your decision, finding your perfect fit will be a breeze!
Editor's Choice
BOSCH CO21B 21-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat
Premium Pick
Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel
Budget Pick
BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat
Top 10 Best Brand Cobalt Drill Bits
We researched and compared the top products in the Best Brand Cobalt Drill Bits category to provide you with these recommendations.
1. BOSCH CO21B 21-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat
- 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.Case Type:Plastic
- Surface-hardened tip penetrates tough abrasive materials
- Split points on bits 1/8 In. and larger allow for easy starts with no skating, eliminating the need for a center punch
- Three-flat shank on bits 3/16 In. and larger deliver better bit grip
2. BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat
- 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
- Includes 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"
3. Cobalt Drill Bit Set - 15Pcs M35 HSS Twist Drill Bits, Straight Shank, Metal Drills bit Set for
- 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.
- Organized Holder :The set includes 15Pcs (1/16"- 3/8") Cobalt Drill Bits, This cobalt drill bit also includes the drill bit holder with size index for easy storage and organizing.
4. Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel
- 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
- Use Notices: Drill bit should be vertical to the workpiece when used; controling low speed from 200 to 1000 rpm; using cutting fluid will stay cool to make the bit last longer
5. MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened
- 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
6. Cobalt Drill Bit Set - 29Pcs M35 High Speed Steel Twist Drill Bits for Hardened Metals, Stainless
- 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.
- Set Includes: The set includes 29Pcs (1/16"-1/2") Cobalt Drill Bits, This cobalt drill bit also includes the drill bit holder with size index for easy storage and organizing.
7. Drill America - D/A29J-CO-PC 29 Piece M42 Cobalt Drill Bit Set in Round Case (1/16" - 1/2" X 64ths),
- Set contains 29 m42 Cobalt Drill Bits sizes 1/16" - 1/2" x 1/64" increments
- Cobalt Drills are effective in drilling tough, high tensile strength materials like stainless steel, Inconel, and titanium
- Gold oxide finish acts as a lubricant and provides wear resistance
- Round shanks allow use with a wide variety of tool holding systems
- Manufactured to Aerospace Standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel
- Cobalt steel provides extended tool life compared to high-speed steel drill bits, and maintains the tool's toughness and hardness in high drilling temperatures
- Effortlessly grip the set in 1 hand as you would a travel coffee mug or leave it in the cup holder of your truck while on the way to a job
- When all hands are on deck, hang the drill index on your belt whether you're in the shop or field
- Unique round drill index combines form and function into 1 beautifully designed, easy to carry drill set
8. DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
- Connectable accessory storage system to optimize storage space of drill bits for wood, metal or i-beams
- Patented bit-bar design allows easy removal of drill bits and customizable placement
- DEWALT drill bit set comes with clear lid allowing you to easily see contents at glance
- Clip latch for secure closing
- Small Bulk Storage size fits inside the Small and Medium ToughCase+ (sold separately) - Ideal for organizing loose bits
9. GMTOOLS 29Pcs Cobalt Drill Bit Set, 135 Degree Tip High Speed Steel with Black and Gold Finish,
- High Quality Material: The combination of high-speed steel black and gold oxide finish increases drill bit's corrosion resistance and wear resistance.
- 135Split Point: The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, fully ground drill bit with sharp and durable cutting edge. Twist design for bring metal shavings up and out of the hole drill.
- 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.
- Set 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, 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 and 1/2 inch bits;Storage in a metal indexed case.
- 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!
10. Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
- Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
- 3 Steps Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
- This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
- The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
- 19Pcs 135 Degree Split Point Drill Bits Includes :1mm(length:3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm 7mm 7.5mm 8mm(length:11.5cm) 8.5mm 9mm 9.5mm 10mm(length:13cm) [DIA 0.5mm Increments] .
Peter
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