M12 x 1.5 Green Ring Spiral Flute Bottoming DIN 374 Small Shank Tap, HSS-E (Cobalt), D4/D5, TiCN Coated Type: Green Ring,Number of Flutes: 3,Hole Type :Blind Hole 100mm Overall Length, 9mm Shank Diameter, Without Coolant Throogh, Chamfer Form E: 1.5 to 2 Lead Threads Series No. 4157, Order Code 12.0070, Guhring Part #9041570120070