DIN2080 k DIN2080-ER L1 a L78˚17'50" L4 G d2 d7 b d1 Shank a±0.2 b (H12) d1 d2 G d7 K±0.15 SK 30 1.6 16.1 31.75 17.4 M12 50 8 SK 40 1.6 16.1 44.45 25.3 M16 63 10 SK 50 3.2 25.7 69.85 39.6 M24 97.5 12 Shank L1 L4 L7 MAX Taper AT3 SK 30 68.4 24 16.2 0.002 SK 40 93.4 32 22.5 0.003 SK 50 126.8 47 35.3 0.004 652 ISCAR