
Bosch
BOSCH CO21B 21-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum
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9.2/10
Highlights
- Cobalt M42 drill bit β 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 β contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
- High-heat resistant bits β withstand high-temperature applications for extended periods of time
- Thick web-helix design β provides additional stability in tough applications.Case Type:Plastic
- Surface-hardened tip β penetrates tough abrasive materials
- Split points on bits 1/8 In. and larger β allow for easy starts with no skating, eliminating the need for a center punch
- Three-flat shank on bits 3/16 In. and larger β deliver better bit grip
Product Details
| Brand | Bosch |
| ASIN | B07Q64LTFB |






