M6 x 1 Form Tap, Semi-Bottom DIN 371 Standard, D8/D9, HSS-E-PM (PM Cobalt), TiN, Oil Grooves, Coolant Fed Type: Form Tap,Number of Flutes: 4,Hole Type :Blind Hole 80mm Overall Length, 6mm Shank Diameter, 30mm Threading Depth, With Radial Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 323, Order Code 06.0000, Guhring Part #9003230060000