HSK-A d1 (mm) d2 (mm) d6 (mm) d10 max (mm) d16 (mm) f1 (mm) f2 min (mm) f3 (mm) L1 (mm) L6 (mm) 50 50 38 29 42 M16 26 42 18 25 14,13 63 63 48 37 53 M18 26 42 18 32 18,13 80 80 60 46 67 M20 26 42 18 40 22,85 100 100 75 58 85 M24 29 45 20 50 28,56 Description Series Page l6 60° d10d2d5d4d16maxd1 Standard Toolholder - Form A Standard, Metric HSK-A40/50/63/80/100 744 b1 f3 f1 l1 f2 l4 60° d4 d1d2d9d8maxd16 Standard Toolholder - Form E - Metric HSK-E32/40/50/63 745 f3 f1 l1 f2 l4 60° l2 d2 d9 d8 5 12 d10max d1 Standard Toolholder - Form F Standard, Metric SHK-F63 746 f3 f1 l1 f2 HSK D D L1Ref Collet Chuck, Metric HSK-E32/40/50/63-ER16/20/25/32 747 J D1 L2Ref L Ref L1Ref LRef HSK D J Mini Collet Chuck, Metric HSK-A50/63/100-ER16/20 748 D1 L2Ref L1Ref L Ref HSK D J Collet Chuck, Metric HSK-A40/50/63/100-ER16/20 749 D1 L2Ref L1Ref LRef HSK D Collet Chuck, Metric HSK-A40/50/63/100-ER25/32/40/50 750 J D1 L2 L1Ref LRef HSKFM 63 D D1 J Collet Chuck, Metric HSK-FM63-ER16 751 L2Ref L1Ref L Ref 740