M8 x 1.25 Red Ring Spiral Point Plug DIN 376 Small Shank Tap, HSS-E (Cobalt), D4/D5, TiCN Coated Type: Red Ring,Number of Flutes: 3,Hole Type :Through Hole 90mm Overall Length, 6mm Shank Diameter, Without Coolant Through, Chamfer Form B: 3.5 to 5 Lead Threads Series No. 1915, Order Code 08.0000, Guhring Part #9019150080000