M8 x 1.25 Micro Form Tap, Semi-Bottoming DIN 371 Standard, HSS-E (Cobalt), D9/D10, TiN Coated With No Oil Grooves Type: Form Tap,Number of Flutes: 5,Hole Type :Blind Hole 90mm Overall Length, 8mm Shank Diameter, 35mm Threading Depth, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 921, Order Code 08.0000, Guhring Part #9009210080000