Overview
Model # CO21B Store SKU # 1001531496
Bosch Cobalt M42 Metal Drill Bits are engineered with upgraded M42 alloy, containing 8% cobalt. These hard-core cobalt bits deliver 10X life vs. standard bits, are jobber length and withstand high-heat applications. The thick web-helix design delivers fast material removal and increased stability. Bits that are 1/8 In. and larger feature a split point, bits 3/16 In. and larger feature a three-flat shank, for better bit grip. These cobalt drill bits provide superior performance in stainless steel and can be used to drill cast iron, titanium and other hard or abrasive metals.
- Cobalt M42 drill bit : upgraded M42 cobalt jobber-length bits designed for durability, high heat resistance & hardened surface for stainless steel, cast iron, titanium, light-gauge metal & 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
- Split points on bits 1/8 In. and larger : allow for easy starts with no skating, eliminating the need for a center punch
