This YG-1 TOOL CO 3 Flute Spiral Pointed Plug Stem Oxide Tap For Steels Upto 38Hrc is made of HSSE-V3 material and has an oxide finish. It has a number of flutes of 3, a weight of 0.0833, a size of 3/8 – 16, a pitch limit of H7, a connection of 9.68 x 7.26 mm and 0.381 x 0.286 in, a thread series of UNC, a tap type of SPPT, a size and pitch of 42437, a package of 3.875 x 0.75 x 0.625 in, a chamfer length of 4P-5P, a square size of 9.68 mm and 0.286 in, a drill size of 8.08148625 mm and 0.31816875 in, a diameter of 9.525 mm and 0.375 in, a snap pack count of 10, a shank type of square, a square length of 11.18 mm and 0.44 in, a neck diameter of 7.29 mm and 0.287 in, a pitch of 16, a usable length of 31.8 mm and 1.252 in, a thread length of 19 mm and 0.748 in, an overall length of 74.68 mm and 2.94 in.