M4 x .7 D5 Powertap Spiral Flute Semi-Bottoming DIN 376 Small Shank Tap, HSS-E (Cobalt), D5, TiN Coated Type: PowerTap,Number of Flutes: 3,Hole Type :Blind Hole 63mm Overall Length, 2.8mm Shank Diameter, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 5738, Order Code 004.0000. Made in Germany, Guhring Part #9057380040000