This spotting drill bit is made of carbide and has a ¼ inch diameter shank. It is designed for use with all materials. This spotting drill bit has a bright (uncoated) finish, and has letter measurements. It has a 90 Degrees drill bit point, with a 2½ inch length. Plus it has two ¾ inch spiral flutes, a straight shank, right hand cutting direction, and 90 Degrees drill point.