BOSCH CO2139B Cobalt M42 Metal Drill Bit for Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

The BOSCH Cobalt M42 metal drill bits are engineered with an upgraded M42 alloy, containing 8% cobalt. These hard-core Cobalt bits are designed for superior performance, providing 10 times the life expectancy compared to standard bits. They are jobber length and can withstand high-heat applications.

The thick web-helix design of these Cobalt drill bits delivers fast material removal and increased stability. Bits that are 1/8 inch and larger feature a split point, while bits 3/16 inch and larger have a three-flat shank for better bit grip. These features contribute to the exceptional performance of these Cobalt drill bits, which are particularly effective in stainless steel and can also be used to drill cast iron, titanium, and other hard or abrasive metals.

The enhanced M42 alloy material, containing 8% cobalt, is the key to the longevity of these Cobalt M42 drill bits. This advanced alloy composition delivers 10 times the life expectancy compared to standard drill bits. Additionally, the high-heat resistant nature of these bits allows them to withstand high-temperature applications for extended periods without compromising their integrity.

The thick web-helix design of the Cobalt M42 drill bits provides additional stability, making them well-suited for tackling tough applications. This design feature, combined with the surface-hardened tip, enables the bits to effectively penetrate and drill through abrasive materials with ease.

In summary, the BOSCH Cobalt M42 metal drill bits are engineered to deliver superior performance and durability. The upgraded M42 alloy, containing 8% cobalt, provides 10 times the life expectancy compared to standard bits, while the high-heat resistant and thick web-helix design ensure that these bits can handle demanding applications involving stainless steel, cast iron, titanium, and other hard or abrasive metals.

product information: