YG-1 YG Tap STI T7426487 Straight Flute Tap, 3/8-16 STI Thread, 4 Flutes, 4P-5P Plug Chamfer, UNC Thread

4 Flute HSS Plug Style Straight Flute Bright Finish Screw Thread Insert Tap For General Purpose

YG-1 Cutting Tools T7426487 3/8 in | UNC | 4 Flute | Plug | Spiral Flute STI Tap