Steep Tapers Accessories for collet chucks DIN 6499 DIN 6499 246580 KOCH, clamping nut Mini pre-balanced for high speed Collet 246580 d1mm G hmm ER16M 22 M19 × 1.00 18.0 ER20M 28 M24 × 1.00 19.0 ER25M 35 M30 × 1.00 20.0 Accessories for collet chucks DIN6499 24 246571 PRECITOOL, clamping nut Mini, pre-balanced Collet 246571 Dmm G L max. tightening torquemmNm ER08M 12 M10 × 0.75 10.8 8 ER11M 16 M13 × 0.75 12.0 18 ER16M 22 M19 × 1.00 18.4 28 ER20M 28 M24 × 1.00 19.0 35 ER25M 35 M30 × 1.00 20.0 40 Accessories for collet chucks DIN 6499 DIN 6499 ER25 - ER40 246501 PRECITOOL, clamping nut, pre-balanced Collet 246501 Dmm Type G L max. tightening torquemmNm ER11 19 hexagonal M14 × 0.75 11.3 25 ER16 28 hexagonal M22 × 1.50 17.5 50 ER20 34 hexagonal M25 × 1.50 19.0 75 ER25 42 with groove M32 × 1.50 20.0 85 ER32 50 with groove M40 × 1.50 22.5 105 ER40 63 with groove M50 × 1.50 25.5 150 Accessories for collet chucks DIN 6499 Design: - clamping nut with slide ring and coating for increased clamping power- grooved form (except size ER16 and Er20 with hexagon)DIN6499 246520 KOCH, clamping nut Collet 246520 d1mm Type G hmm ER16 28 hexagonal M22 × 1.5 20.3 ER20 34 hexagonal M25 × 1.5 21.8 ER25 42 with groove M32 × 1.5 22.4 ER32 50 with groove M40 × 1.5 25.0 ER40 63 with groove M50 × 1.5 28.3 www.precitool.de 24/497