Product details:
Made in: GERMANY M16 x 2 Black Ring Spiral Point Plug ANSI Standard Small Shank Tap, HSS-E (Cobalt), D6/D7, Moly Glide Coated Type: Black Ring,Number of Flutes: 3,Hole Type :Through Hole 96.8mm Overall Length, 0.4800" Shank Diameter, Without Coolant Through, Chamfer Form B: 3.5 to 5 Lead Threads Series No. 3966, Order Code 16.0000, Guhring Part #9039660160000