M8 x 1 D5 Powertap Spiral Flute Semi-Bottoming DIN 374 Small Shank Tap, HSS-E (Cobalt), D5, Steam Oxide Finish Type: PowerTap,Number of Flutes: 3,Hole Type :Blind Hole 90mm Overall Length, 6mm Shank Diameter, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 5724, Order Code 008.0050. Made in Germany, Guhring Part #9057240080050