24 best cobalt drill bits passed our test 2024

• HIGH RATINGS: COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High-Speed Steel Twist Jobber Length for Hardened Metal
• BEST OVERALL: DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
• BEST BUDGET: BOSCH CO2134 7/64 In. x 2-5/8 In. Cobalt Drill Bit

1. HIGH RATINGS: COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High-Speed Steel Twist Jobber Length for Hardened Metal 

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• 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, and 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 it also can be used for softer materials. Read more 

These Cobalt Drill Bits are made from hardened M35 High-Speed Steel, which is lightweight, durable, will not rust, and holds a solid cutting edge, so it won't break easily. The high-speed steel is hardened to achieve a hard and durable cutting edge.

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2. BEST OVERALL: DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)  

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• Connectable accessory storage system to optimize storage space of drill bits for wood, metal or i-beams
• DEWALT drill bit set comes with a clear lid allowing you to easily see contents at a glance
• Clip latch for secure closing
• Small Bulk Storage size fits inside the Small and Medium ToughCase+ (sold separately) - Ideal for organizing loose bits.  Read more  

The DEWALT Cobalt Alloy Steel Drill Bit Set has 14 pieces of drill bits with a pilot point. These drill bits are made from cobalt alloy steel and have a non-slip shank for increased power. Not only can these drill bits be used for wood, but they can also be used for metal surfaces. These bits come in a case to keep them organized and protected when not in use. It is ideal for drilling holes in wood, plastic, fiberglass, and other materials without the need to pre-drill first.

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3. BEST BUDGET: BOSCH CO2134 7/64 In. x 2-5/8 In. Cobalt Drill Bit

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• Withstands high-temperature applications for extended periods (up to 1,100 degrees)
• Rigid, thick web design adds stability a 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, alloy steel, cast iron, stainless steel, and titanium. Read more

If you are looking for a drill bit that will last longer and provide you with a smooth and clean drilling experience, then look no further than the BOSCH CO2134 7/64 In. x 2-5/8 In. Cobalt Drill Bit. This drill bit has an all-metal construction, so it can withstand anything that is thrown its way and still maintain the quality of its performance.

 OTHER CHOICES:

• BEST CHOICE ( UNDER $20 ): DelitonGude HSS M35 Cobalt Twist Drill Bits,3.2mm,1/8"inch, High-Speed Steel 
• BEST CHOICE ( ABOVE $20 ):1/8 Inch Cobalt Drill Bits(10Pcs), HPHOPE M35 HSS Metal Twist Drill Bits Set 
• BEST CHOICE ( ABOVE $20 ): Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) 

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