8-32 Spiral Point Plug DIN 371 Standard Tap, HSS-E-PM (PM Cobalt), H4/H5, TiAlN Coated Type: Grey Ring,Number of Flutes: 3,Hole Type :Through Hole 63mm Overall Length, 4.5mm Shank Diameter, 21mm Threading Depth, Without Coolant Through, Chamfer Form B: 3.5 to 5 Lead Threads Series No. 2918, Order Code 04.1660, Guhring Part #9029180041660