BOSCH CO21B 21 Pc. Cobalt M42 Drill Bit Set
- 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.