Top 10 Cobalt Drill Bit Set for Hardened Steel – Jobber Drill Bits

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Bosch CO14B 14 Pc. Cobalt M42 Drill Bit Set

BOSCH #ad - Enhanced m42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits. Cobalt m42 drill bit – provides upgraded m42 cobalt jobber-length bits designed for durability, titanium, cast iron, high heat resistance and Hardened surface for stainless steel, light-gauge metal and aluminum. High-heat resistant bits – withstand high-temperature applications for extended periods of time. Surface-hardened tip – penetrates tough abrasive materials. Thick web-helix design – provides additional stability in tough applications.
BrandBOSCH #ad
ManufacturerBosch #ad
Part NumberCO14B
WarrantyProduct Defects Only

2. BeHappy


Cast Iron and Wood Plastic with Indexed Storage Case, BeHappy Drill Bit Set 29pcs, Stainless Steel, 1/16"-1/2", M35 Cobalt Drill Bit Set, High Speed Steel Twist Drill Bit Set for Hardened Metal

BeHappy #ad - Hss drill bit set :hss cobalt drill bit set for hardened steel has excellent cutting performance, drill bit set 29pcs can be used for a long time, with superior sharpness, The cutting edge is hardened and honed for sharpness, accurate cutting without shaking. It can also be used in soft materials.

Organized holder: cobalt drill bit set includes a drill stand with size index for easy storage and organization. Drill bit set is suitable for most brands on the market. Reliable quality and considerate service. M35 cobalt characteristics : m35 cobalt drills bit set is effective in drilling tough, superalloy, high tensile strength materials,drill bit is especially good at cutting hard metals such as stainless steel, titanium alloy, cast iron, hard plastic and wood.1135° split point: cobalt drill bit set for hardened steel is 135° split point tip and torsional design to improve cutting speed, self-centering, prevent walking, and faster chip and particle removal.

If you have any questions, please feel free to contact us, we will do our best to serve you. Size included: drill bit set 29pcs include 1/16", 23/64", 29/64", 3/32", 11/64", 1/2", 3/16", 7/16", 5/32", 5/64", 17/64", 27/64", 13/64", 21/64", 3/8", 1/8", 25/64", 15/64", 7/32", 13/32", 15/32", 11/32", 9/64", 1/4", 19/64", 9/32", 7/64", 31/64", 5/16", which can meet more requirements.
BrandBeHappy #ad
ManufacturerNA #ad
Height2.56 Inches
Length8.27 Inches
Width4.92 Inches
Part NumberGoldmoon Industry
ModelGoldmoon Industry



COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, 1/16"-3/8", Cast Iron and Wood Plastic with Indexed Storage Case, Stainless Steel

COMOWARE #ad - Particularly successful in cutting through hard metals such as stainless steel, high temperature alloy, titanium alloy, hard plastics and woods, cast iron, and also can be used for softer materials. Size included: 15pcs jobber length drill bit set with plastic storage case including sizes:1/16" 2pc, 9/64" 1pc, 5/64" 1pc, 7/64" 1pc, 3/32" 2pc, 1/8" 2pc, 7/32" 1pc, 5/16" 1pc, 3/16" 1pc, 5/32" 1pc, 1/4" 1pc, 3/8" 1pc.

High quality material: 5% cobalt high Speed Steel M35 provide extended tool life compared to ordinary drill bits. Durable and strong. Prevent walking, clear chips and particles faster.

Produced by precision fully ground which ensures chips move smoothly. 100% satisfaction guarantee: if you are not 100% satisfied with your purchase for any reason whatsoever simply please feel free to contact us. Twist design & performance: precise 135°split point, gold oxide finish and round straight shanks. Professional & widely use: m35 cobalt hss is more suitable for hardened material.
ManufacturerCOMOWARE #ad



DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece DWA1240

DEWALT #ad - Small bulk storage size fits inside the Small and Medium ToughCase+ sold separately - Ideal for organizing loose bits. Clip latch for secure closing.

Patented bit-bar design allows easy removal of drill bits and customizable placement. No bit walking - more user control. Industrial strength cobalt for optimum life and durability in metal. Maximum speed and life in stainless steel and other hard metals. Connectable accessory storage system to optimize storage space of drill bits for wood, metal or i-beams. Dewalt drill bit set comes with clear lid allowing you to easily see contents at glance. Pilot point tip starts on contact for clean, accurate holes and reduces lock-up on breakthrough.
BrandDEWALT #ad
ManufacturerDewalt #ad
Height8.75 Inches
Length8.75 Inches
Weight0.8 Pounds
Width1.74 Inches
Part NumberDWA1240

5. Drill America


Drill America, DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case 1/16", 1/2" X 64ths, DWDCO Series

Drill America #ad - Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging. Gold oxide finish lubricates the drill bit and provides wear resistance. Meets anSI specifications. Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials. Set of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments.
BrandDrill America #ad
ManufacturerDrill America #ad
Weight2.2 Pounds
Part NumberDWD29J-CO-PC

6. Viking Drill & Tool


Viking Drill and Tool 44150 SP-29 Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set 29 Piece

Viking Drill & Tool #ad - Nas 907b heavy Duty Jobber. Special hi-molybdenum tool steel/ Gold Oxide. Set premium high speed steel heavy Duty NAS 907B 135-Degree Split Point. 135-degree split point, 1/16 - 1/2 by 64ths. Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance.29 pc.
BrandViking Drill & Tool #ad
ManufacturerViking #ad
Height1.88 Inches
Length7.13 Inches
Width4.25 Inches
Part Number44150

7. Irwin Tools


M35 Cobalt Steel, IRWIN Drill Bit Set, 29-Piece 3018002

Irwin Tools #ad - Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk. Cobalt drill Bit Set. 29 piece. Heavy duty web construction For Strength & Durability. 5% cobalt for higher Heat & Abrasion Resistance.
BrandIrwin Tools #ad
ManufacturerIRWIN #ad
Height4 Inches
Length12 Inches
Weight4.45 Pounds
Width7.5 Inches
Part Number3018002



Stainless Steel, 1/16"-1/4" 13 Pcs, M35 HSS Straight Shank Twist Drill Heat Resistant Metal Drill Bits for Hard Metal, Cast Iron and Wood, XLCMSY Cobalt Drill Bit Set, Hardened Steel

XLCMSY #ad - Safe & eco-friendly high speed steel with 5% cobalt, safe and eco-friendly, durable, It is a very practical and user-friendly drill bit for cutting through hardened material, providing longer tool life and reducing environmental pollution, golden surface treatment holds up lubricant better for smoother drilling. Heat resistant this straight shank twist drill set is made of 5% cobalt high speed steel, It is super heat resistant and wear resistance can cut hard metals quickly, adding molybdenum and cobalt to form a hardened alloy with a Rockwell hardness of 67, suitable for drilling high hardness materials, up to 10 times life than ordinary HSS drill bits.

It is perfect match for home DIY, workshop or vehicles repair shop. These cobalt drill bits are widely used in metalworking, 3/32", 1/8", not suitable for glass or ceramic. Practical design the metal drill bits kit features a straight shank design that makes it easier to fix and precisely machine, saving time and improving work efficiency.

Lightweight & durable designed with a 135 degree split point, making cutting faster and less powerful, eliminating the need for a center punch, preventing walking and cutting stainless steel more precisely, these drill bits are very lightweight, thanks to its precision grinding inclined blade design, each bit ensures fast drilling with excellent chip removal. Multiple sizes & widely used the metal drill bits set for steel are available 13 sizes to meet your different needs, 13/64", 7/32", 5/64", it is ideal for cutting hard alloys such as stainless steel and cast iron, 3/16", 9/64", 15/64", 5/32", 11/64", drill bit sizes include : 1/16", 7/64", 1/4".
BrandXLCMSY #ad
ManufacturerXLCMSY #ad
Height0.6 Inches
Length5.3 Inches
Width3 Inches
Part NumberSY-0502



29-Piece DWA1269, DEWALT Drill Bit Set, Pilot Point, Cobalt

DEWALT #ad - Intended to be used on hard metals. No bit walking - more user control. Designed for maximum speed and life. Pilot point and split tip design.
BrandDEWALT #ad
ManufacturerDewalt #ad
Height9.88 Inches
Length6.88 Inches
Weight3 Pounds
Width3.69 Inches
Part NumberDWA1269



Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal 1mm-10mm/19pcs

STROTON #ad - 3 steps desigh for cutting through Stainless Steel, Hard Metals, Aluminum, Plastic. Premium m42 8% cobalt steel, 68-70 hrc rockwell hardness Scale, Usually Give the Best Heat, Wear and Chip Resistance and Long Tool Life.

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. 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. 19pcs 135 degree split point drill bits includes :1mmlength:3. 4cm\1. 5mm\2mm\2. 5mm\3mm\3. 5mm\4mm\4. 5mm\5mmlength:8. 5cm\5. 5mm\6mmlength:9cm\6. 5mm\7mm\7. 5mm\8mmlength:11. 5cm\8.
BrandSTROTON #ad
ManufacturerSTROTON Ltd #ad
Part NumberM42 Cobalt-8(19pcs)