HSSCo Centre Drill Tip of 168º-172º Helix at 30º DIN1897N 7mm 7x34x74x7D1 (Cutting diameter): 7mm L2 (Length of cut): 34mm L1 (Total length): 74mm D2 (Shank diameter): 7 HSSCo Cobalt High Speed ?? Steel Extra short series 135 tip Special sharpening for welding points 30 propeller Titanium Aluminum TIALN Coating Applications: Soft magnetic steels, construction and carburizing steels, and non alloyed and alloyed carbon steels up to a strength of 1,100 N mm2 * MADE IN SPAIN * item code: 307002