29 Piece Black Oxide Drill Bit Set 1/16 Inch To 1/2 Inch By 64Ths

Master Mechanic 29 piece high speed steel black oxide drill bit set. Contains 1/16 inch to 1/2 inch by 64ths. Features 135 degree split point, jobber length, a 3/8 inch shank, 135 split point angle with 4 cutting edges, eliminates walking & provides fast penetration, black oxide tempering treatment reduces frictional resistance and improves chip flow. Recommended for drilling wood, plastic, wallboard, plywood, soft metals, aluminum, brass, bronze and for occasional use in stainless steel and other hard metals. Organized in a durable case with slide closure.