Top 10 Cobalt Drill Bits (April 2024)

DEWALT Cobalt Drill Bit Set with Pilot Point – ⭐ Best Overall Cobalt Drill Bit

DWA1240 by DEWALT

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
Maximum speed and life in stainless steel and other hard metals
PILOT POINT tip starts on contact for clean, accurate holes and reduces lock-up on breakthrough
Industrial strength cobalt for optimum life and durability in metal
No bit walking - more user control

HIGH QUALITY MATERIAL: 5% Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits. Durable and strong
TWIST DESIGN & PERFORMANCE: PRECISE 135°SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster.Produced by precision fully ground which ensures chips move smoothly.
PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, 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,5/64" 1pc ,3/32" 2pc,7/64" 1pc,1/8" 2pc ,9/64" 1pc, 5/32" 1pc, 3/16" 1pc, 7/32" 1pc, 1/4" 1pc, 5/16" 1pc, 3/8" 1pc.
100% SATISFACTION GUARANTEE: If you are not 100% satisfied with your purchase for any reason whatsoever simply please feel free to contact us.

3018002 by Irwin Tools

29 Piece
Cobalt Drill Bit Set
Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk
5% Cobalt For Higher Heat & Abrasion Resistance
Heavy Duty Web Construction For Strength & Durability

DWD29J-CO-PC by Drill America

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

CO21B by Bosch

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

CO2135 by Bosch

Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
Rigid, thick web design adds stability to bit in tough applications
Surface hardened to penetrate tough abrasive materials
Available in jobber length, full shank
Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium

CO2143 by Bosch

Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
Rigid, thick web design adds stability to bit in tough applications
Surface hardened to penetrate tough abrasive materials, Cuts through light gauge metal, high carbon steel, aluminum and alloy steel, cast iron and stainless steel
Available in jobber length, full shank, Drill Point Angle is 135 degrees, Surface Coating is uncoated (bright finish), Bit type is Twist
Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium

CO-Z SDB-0000 by CO-Z

Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Please mark the spot that you are to drill for easier drilling and improved drill bits life.
All the bits come in a well-organized case for easy transport and storage.

21M42GB by Drill Hog

D/A29J-CO-SET by Drill America

Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
Round shanks allow use with a wide variety of toolholding systems
When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
29 piece drill bit set comes in a metal case