M24 x 2 D7 Powertap Spiral Flute Semi-Bottoming DIN 374 Small Shank Tap, HSS-E-PM (PM Cobalt), D7, TiN Coated Type: PowerTap,Number of Flutes: 4,Hole Type :Blind Hole 140mm Overall Length, 18mm Shank Diameter, 48mm Threading Depth, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 5740, Order Code 024.0080. Made in Germany, Guhring Part #9057400240080