This M2 pipe tap is made of high speed steel and has a 1⅞ inch diameter, 2¾ inch long shank. It is designed for use with all materials, and meets the standards for ANSI. This 311-60505 series pipe tap has a bright (uncoated) finish, and has fractional inch measurements. It is non-coolant through, has right hand direction with a 4½ inch length. Plus it has seven flutes, a straight shank.