37/64" Cobalt Drill Bit: 1/2" 3-FLAT Shank and 6 inch length, Ideal for drilling hard metal, copper, stainless steel, Copper and Aluminum
UP to 3X Longer Life: Made of M35 cobalt high speed steel, provide extreme durability and resisting breakage. Black and gold coating for high-heat resistant and rust protection
Efficiently and Clean: Fully ground technology for PRECEISION and FAST drilling clean, burr-free holes
Prevent Walking: 135 Degrees split point for precision start NO WALKING, and stays sharper longer
Optimized Flute Design: Fast chip removal. 3-Flat shank prevents the bit from slipping in the drill chuck