This pilot point drill bit is made of high speed steel and has a ½ inch diameter, 1½ inch long shank. It is designed for use with metal, plastic, wood. This jobber length pilot point drill bit has a black oxide finish, and has fractional inch measurements. It is non-coolant through with a six-inch length. Plus it has 4½ inch spiral flutes, 3 flats shank, and a 135 Degrees split point.