Titan USA Spiral Point Tap, CNC Style High Performance, Series: Predator 772, Measurement System: Imperial, 5/16-18, Plug Chamfer, 3 Flutes, Premium Powdered Metal, Uncoated, 0.83 in Thread Length, 2-23/32 in Overall Length, 0.318 in Shank Dia, Steel, Stainless Steel and Steel Alloy Material Application, H5 Thread Limit