39/64" Cobalt Drill Bit with 3/8" Reduced Shank, D/ACO BoltsandNuts.com Part Number: Assortment Kit #1391466

Part Number: Assortment Kit #1391466 Pieces

Synthetic Leather

Part Number: assortment-kit-4691656 Pieces - Coarse & Fine Thread

Pilot Diameter #22

39/64" Cobalt Drill Bit with 3/8" Reduced Shank, D/ACO BoltsandNuts.com Part Number: Assortment Kit #1391466Product 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