M20 x 1.5 Form Tap, Semi-Bottoming DIN 374 Small Shank, HSS-E (Cobalt), D11/D12, TiN Coated With Oil Grooves Type: Form Tap,Number of Flutes: 7,Hole Type :Blind Hole 125mm Overall Length, 16mm Shank Diameter, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 927, Order Code 20.0070, Guhring Part #9009270200070