Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance
Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch
Features a tough cobalt alloy delivers heat resistance up to 1100 degree Fahrenheit allowing the bit to perform for extended periods of time in the most abrasive materials without failing due to the high heat levels
Overall bit hardness of 66-68 HRC from the cobalt formulation gives the ability to penetrate exceptionally tough materials
135 degree split point starts on contact with no walking or skating and no center punch is required
Withstands high-temperature applications for extended periods of time (up to 1,100°F) Rigid, thick web design adds stability to bit in tough applications. Surface hardened to penetrate tough abrasive materials
Available in jobber length, full shank. Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
Plastic case includes 1/16-inch bit (2), 5/64-inch bit (2), 3/32-inch bit, 7/64-inch bit (2), 1/8-inch bit (2), 9/64-inch bit, 5/32-inch bit, 11/64-inch bit, 3/16-inch bit, 7/32-inch bit, 1/4-inch bit, 5/16-inch bit, 3/8-inch bit and 1/2-inch bit
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