M33 x 3.5 X-Length Straight Flute Semi-Bottom DIN 376 Small Shank Tap, D9/D10 , HSS-E (Cobalt), TiCN Coated, Coolant Fed Type: Black/Red/White,Number of Flutes: 4,Hole Type :Blind Hole 275mm Overall Length, 25mm Shank Diameter, With Axial Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 779, Order Code 33.0000, Guhring Part #9007790330000