Double reinforced with industrial grit & glue for increased life & durabilityEasy to useManufactured in China
Master Mechanic, 5/16" x 12", extra length, high speed steel, BLACK oxide drill bit, 135 point angle with 4 cutting edges which eliminate walking & provide fast penetration, BLACK oxide tempering treatment reduces Frictional resistance & improves chip flow, recommended for wood, plastic, Wallboard, plywood & soft metals, aluminum, brass, & bronze, for occasional use in stainless steel & other hard metals, Carded.
Brand: Disston, Model: 504688