Greenfield Threading Straight Flute Hand Tap, General Purpose Standard, Series: HTGP, Measurement System: Imperial, Ground/UNC Thread Standard, 3/4-10 Thread, Plug Chamfer, 4 Flutes, HSS, Bright, Class of Fit: 2B, Right Hand Cutting Direction, 1.22 in Thread Length, 4-1/4 in Overall Length, 0.59 in Shank Diameter, Cast Iron, Steel, Stainless Steel and Non-Ferrous Materials Material Application, H3 Thread Limit