Osg Spiral Flute Tap, Mbot, Bright, 3/8-16

General-purpose style, modified bottoming type spiral flute tap is made of high speed steel-E with uncoated finish, number of flutes: 3, size: 3/8", pitch: 16, thread: NC/UNC, pitch diameter limits: H5, standard projection, shank diameter: 0.381", for cutting internal threads cast iron, carbon steel, alloy steel, die steel, stainless steel and hardened steels, tolerance: 2B, ANSI standards: 290. Modified bottoming tap can reach to the bottom of a blind hole to cut threads HSS-E substrate material Uncoated (bright) finish is an untreated surface See more product details