1/2" Cobalt Drill Bit with 3/8" Reduced Shank, D/ACO - High Performance & Durable Cutting Tool | Drill America Sets & Kits These cutters are commonly used

These cutters are commonly used in mechanical and automotive applications for creating reliable keyways

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1/2" Cobalt Drill Bit with 3/8" Reduced Shank, D/ACO - High Performance & Durable Cutting Tool | Drill America Sets & Kits These cutters are commonly usedCobalt drill bits are are effective in drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. They have a 135 split point tip for fast penetration and accurate drilling. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. Reduced Shank Drills expand the size