Titan USA Straight Flute Tap, Standard, Series: 725, Measurement System: Imperial, Ground/UNF, 5/16-24, Plug Chamfer, 4 Flutes, HSS, Uncoated, Right Hand Cutting, 1-1/8 in Thread Length, 2-23/32 in Overall Length, 0.318 in Shank Dia, H3 Thread Limit