pShearTap Spiral Point Tap, Oversized, Series 2090M, Measurement System Metric, M16x2, Plug Chamfer, 4 Flutes, HSS, Black Steam Oxide Over Nitride, Right Hand Cutting, 118 in Thread Length, 31316 in Overall Length, Steels and Stainless Steels up to 35Rc Hardness Material Applicationp.