M6 x 1 White Ring Straight Flute Semi-Bottoming DIN 376 Small Shank Tap, HSS-E (Cobalt), D5/D6, TiAlN Coated Type: White Ring,Number of Flutes: 4,Hole Type :Blind Hole 80mm Overall Length, 4.5mm Shank Diameter, Without Coolant Through, Chamfer Form C: 2 to 3 Lead Threads Series No. 1919, Order Code 06.0000, Guhring Part #9019190060000