YG-1 YG Tap STI ST442 Spiral Flute Tap, 5/16-18 STI Thread, 3 Flutes, 2B Class of Fit, 1.5P-2P Bottoming Chamfer, UNC Thread

3 Flute Spiral Pointed Plug Hardslick Coated Tap For Stainless Steels Upto 28Hrc

YG-1 Cutting Tools ST442 5/16 in -18 | 1.5P-2P | Right Hand | 2B | Spiral Flute Tap