3/4-16 Pionex Form Tap, Semi-Bottom DIN 374 Small Shank, HSS-E-PM (PM Cobalt), H10/H11, TiCN Coated With Oil Grooves Type: Form Tap,Number of Flutes: 7,Hole Type :Blind Hole 110mm Overall Length, 14mm Shank Diameter, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 4492, Order Code 19.0500, Guhring Part #9044920190500