This pilot point drill bit is made of high speed steel and has a 5/32 inch diameter, 1 3/25 inch long shank. It is designed for use with metal, plastic, wood. This jobber length pilot point drill bit has a gold ferrous finish, and has fractional inch measurements. It is non-coolant through with a 3⅛ inch length. Plus it has 2 inch spiral flutes, a straight shank, and a 135 Degrees split point.