Drumroll, please! Presenting the cream of the crop: Our picks for best cobalt drill bits
The best best cobalt drill bits
BOSCH CO14B 14-Piece Cobalt M42 Metal Drill Bit Assorted Set for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum
out of stock
Amazon.com
as of March 16, 2026 2:30 am
Features
- 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
DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
out of stock
Amazon.com
as of March 16, 2026 2:30 am
Features
- 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
STROTON Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood
out of stock
Amazon.com
as of March 16, 2026 2:30 am
Features
- 【Premium 5% Cobalt Steel with 68 HRC】 This Fully Ground Cobalt Drill Bits Set are Made with 5% Ture Cobalt. Although the Cost and Price are Slightly Higher, With a Useful Life,Heat,Wear and Chip Resistance up to 3 Times Longer than the Average Product.
- 【3X Efficiency + 3X Tool Life】This Cobalt HSS Drill Bits Set is Typically Capable of Running 3 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.
- 【Split Point Design with Unparalleled Precision】This Heavy Duty Work Drill Bits Kit is Suitable for Steel, Stainless Steel, Cold Rolled Steel, Hard Metals, Aluminum Alloy, Hard Wood, and Plastic, and Drilling Out Bolts Studs and Screws.
- 【Sturdy and Durable Metal Case】Different from the General Metal Case, This Drill Bits Case is Made of Q235 Cold Rolled Steel Plate, which Can be Opened and Closed Smoothly to Take the Drill Bits out at Any Time.
- 【21 Pieces Jobber Length Industrial Drill Bits 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 [DIA 1/64 Inch Increments]
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Price Drops Alerts
BOSCH CO14B 14-Piece Cobalt M42 Metal Drill Bit Assorted Set for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum, BOSCH
out of stock
BUY NOW
Amazon.com
Price History
DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240), DEWALT
out of stock
BUY NOW
Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | - | March 16, 2026 |
| Highest Price | 41.44 | December 2, 2025 |
| Lowest Price | 26.00 | January 28, 2026 |
Since December 2, 2025
Last price changes
| 26.00 | January 28, 2026 |
| 29.99 | December 15, 2025 |
| 41.44 | December 2, 2025 |
STROTON Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood, STROTON Ltd
out of stock
BUY NOW
Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | - | March 16, 2026 |
| Highest Price | 32.89 | December 2, 2025 |
| Lowest Price | 32.89 | December 2, 2025 |
Since December 2, 2025
Last price changes
| 32.89 | December 2, 2025 |