M20 x 2.5 White Ring Straight Flute Semi-Bottoming DIN 376 Small Shank Tap, HSS-E (Cobalt), D7/D8, TiAlN Coated Type: White Ring,Number of Flutes: 5,Hole Type :Blind Hole 140mm Overall Length, 16mm Shank Diameter, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 1919, Order Code 20.0000, Guhring Part #9019190200000