HY-PRO® Spiral Point Tap, Premium, Series: 280, Measurement System: Imperial, UNC Thread, 3/8-16 Thread, Plug Chamfer, 3 Flutes, HSS-E, TiCN Coated, Right Hand Cutting, 1-1/4 in Thread Length, 2-15/16 in Overall Length, 0.381 in Shank Dia, 1-21/32 in Shank Length, Material Application: Aluminum, Alloy Steel, Carbon Steel, Cast Iron, Die Steel, Hardened Steel and Stainless Steel, H3 Thread Limit, Through Coolant: No