ER COLLETS DIN 6499
| dm | ER08 | ER11 | ER16 | ER20 | ER25 | ER32 | ER40 | ER50 | |
| Clamping Range (mm) | L/D(mm) | L/D(mm) | L/D(mm) | L/D(mm) | L/D(mm) | L/D(mm) | L/D(mm) | L/D(mm) | |
| 13.7/8.5 | 18/11.7 | 27.5/17.25 | 31.5/21.3 | 34.0/26.3 | 40.0/33.35 | 46.0/41.4 | 60.0/52.0 | ||
| 1 | ER08-1.0 | ER11-1.0 | ER16-1.0 | ER20-1.0 | ER25-1.0 | ||||
| 2 | ER08-2.0 | ER11-2.0 | ER16-2.0 | ER20-2.0 | ER25-2.0 | ER32-2.0 | |||
| 3 | ER08-3.0 | ER11-3.0 | ER16-3.0 | ER20-3.0 | ER25-3.0 | ER32-3.0 | ER40-3.0 | ||
| 4 | ER08-4.0 | ER11-4.0 | ER16-4.0 | ER20-4.0 | ER25-4.0 | ER32-4.0 | ER40-4.0 | ||
| 5 | ER08-5.0 | ER11-5.0 | ER16-5.0 | ER20-5.0 | ER25-5.0 | ER32-5.0 | ER40-5.0 | ||
| 6 | ER11-6.0 | ER16-6.0 | ER20-6.0 | ER25-6.0 | ER32-6.0 | ER40-6.0 | ER50-6.0 | ||
| 7 | ER11-7.0 | ER16-7.0 | ER20-7.0 | ER25-7.0 | ER32-7.0 | ER40-7.0 | ER50-7.0 | ||
| 8 | ER11-8.0 | ER16-8.0 | ER20-8.0 | ER25-8.0 | ER32-8.0 | ER40-8.0 | ER50-8.0 | ||
| 9 | ER16-9.0 | ER20-9.0 | ER25-9.0 | ER32-9.0 | ER40-9.0 | ER50-9.0 | |||
| 10 | ER16-10.0 | ER20-10.0 | ER25-10.0 | ER32-10.0 | ER40-10.0 | ER50-10.0 | |||
| 11 | ER20-11.0 | ER25-11.0 | ER32-11.0 | ER40-11.0 | ER50-11.0 | ||||
| 12 | ER20-12.0 | ER25-12.0 | ER32-12.0 | ER40-12.0 | ER50-12.0 | ||||
| 13 | ER20-13.0 | ER25-13.0 | ER32-13.0 | ER40-13.0 | ER50-13.0 | ||||
| 14 | ER25-14.0 | ER32-14.0 | ER40-14.0 | ER50-14.0 | |||||
| 15 | ER25-15.0 | ER32-15.0 | ER40-15.0 | ER50-15.0 | |||||
| 16 | ER25-16.0 | ER32-16.0 | ER40-16.0 | ER50-16.0 | |||||
| 17 | ER32-17.0 | ER40-17.0 | ER50-17.0 | ||||||
| 18 | ER32-18.0 | ER40-18.0 | ER50-18.0 | ||||||
| 19 | ER32-19.0 | ER40-19.0 | ER50-19.0 | ||||||
| 20 | ER32-20.0 | ER40-20.0 | ER50-20.0 | ||||||
| 21 | ER40-21.0 | ER50-21.0 | |||||||
| 22 | ER40-22.0 | ER50-22.0 | |||||||
| 23 | ER40-23.0 | ER50-23.0 | |||||||
| 24 | ER40-24.0 | ER50-24.0 | |||||||
| 25 | ER40-25.0 | ER50-25.0 | |||||||
| 26 | ER40-26.0 | ER50-26.0 | |||||||
| 27 | ER50-27.0 | ||||||||
| 28 | ER50-28.0 | ||||||||
| 29 | ER50-29.0 | ||||||||
| 30 | ER50-30.0 | ||||||||
| 31 | ER50-31.0 | ||||||||
| 32 | ER50-32.0 | ||||||||
| 33 | ER50-33.0 | ||||||||
| 34 | ER50-34.0 | ||||||||
| 35 | ER50-35.0 | ||||||||
| 36 | ER50-36.0 | ||||||||
| Accuracy is implemented in accordance with the DIN 6449 standard. | |||||||||
| Base Material: 20CrMnTi (Case-hardening alloy steel) | |||||||||
| Hardness: HRC 54‑58 with carburizing depth > 0.8 mm | |||||||||
| Clamping a tool for less than 2/3 of the collet's bore length will cause permanent damage to the collet. | |||||||||
| The tool shank diameter must not exceed the collet's maximum clamping diameter. | |||||||||
| Clamping range per collet: 0.5mm for ER08-ER11, 1.0mm for ER16 and above. | |||||||||
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