39/64" Cobalt Drill Bit with 1/2" Reduced Shank, D/ACO BoltsandNuts.com Part Number: Assortment Kit #3851921

Part Number: Assortment Kit #3851921 Pieces

Part Number: BIT-T/A54929

and doweling

240 Pieces

Body Dia 15/16"

39/64" Cobalt Drill Bit with 1/2" Reduced Shank, D/ACO BoltsandNuts.com Part Number: Assortment Kit #3851921Product Description Cobalt 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