Bosch (CO2139B) 3/16 In. X 3-1/2 In. Cobalt M42 Drill Bit

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
• Split points on bits 1/8 In. and larger – allow for easy starts with no skating, eliminating the need for a center punch