M2.2 x .45 Yellow Ring Spiral Flute Semi-Bottoming DIN 374 Standard Tap, HSS-E (Cobalt), D2/D3, Bright Finish Type: Yellow Ring,Number of Flutes: 3,Hole Type :Blind Hole 45mm Overall Length, 2.8mm Shank Diameter, 14.5mm Threading Depth, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 810, Order Code 02.2000, Guhring Part #9008100022000