Drill America 12-Piece 3/16-in x 3-1/2-in Black and Gold Coated HSS Twist Drill Bit

Drill America KFD Killer Force Drill Bits are manufactured from premium grade High-Speed Steel. Gold and black surface treated for use in stainless steel and other hard metal drilling. Manufactured from premium grade M2 high speed steel, Killer Force Drills have a heavy-duty 135 split point for self-centering and reducing thrust. 1/4 in. Hex Shank can be used in quick change impact drivers. The length between the chucking slot on the shank to the end of the shank is standard 3/8 in.