This M2 pipe tap is made of high speed steel and has a 0.906 inch diameter, 1⅞ inch long shank. It is designed for use with all materials, and meets the standards for ANSI. This H311-62305 series pipe tap has a bright (uncoated) finish, and has fractional inch measurements. It is non-coolant through, has right hand direction with a 3¼ inch length. Plus it has five flutes, a straight shank.