M5 x .5 Carbide Tap, Straight Flute Semi-Bottoming DIN 371 Standard, D3/D4, Bright Finish, Coolant Fed Type: Black/White,Number of Flutes: 4,Hole Type :Blind Hole 70mm Overall Length, 6mm Shank Diameter, 25mm Threading Depth, With Axial Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 972, Order Code 05.0030, Guhring Part #9009720050030