High Precision ER20 Collets
Type: ER collets
Name: ER20 Spring Collet
Model:ER20
Material:65Mn
Hardness:HRC44-48
Accuracy:0.003mm,0.005mm,0.008mm,0.015mm
- Product Introduction
Type: ER collets
Name: ER20 Spring Collet
Model:ER20
Material:65Mn
Hardness:HRC44-48
Accuracy:0.003mm,0.005mm,0.008mm,0.015mm
All types of ER collets conform to the DIN 6499B Standard.Using quenched high-strength special materials, after cryogenic treatment, the product performance is stable, wear-resistant and durable.
Product feature:
It is ER20 precision spring collet.
Widely used in milling, boring, tapping,drilling,CNC, sculpture and other processing operations, also can be supported used with the holder of CNC tool.
◆wide clamping range
◆Tight clamping force
◆spring steel
◆high polish
◆uenching and hardening
◆high concentricity
◆Highly wear-resistant
◆high accuracy.





| 型号/Model | 夹持范围/Range | D | d1 | d2 | L | L1 | L2 | L3 | Accuracy | ||
| A | B | C | |||||||||
| ER8 | 1-5 | 8.5 | 8.0 | 6.5 | 13.5 | 10.8 | 3.0 | 1.5 | 0.005 | 0.008 | 0.015 |
| ER11 | 1-7 | 11.5 | 11.0 | 9.5 | 18.0 | 13.5 | 3.8 | 2.5 | 0.005 | 0.008 | 0.015 |
| ER16 | 1-10 | 17.0 | 16.0 | 13.8 | 27.5 | 20.8 | 6.3 | 4.0 | 0.005 | 0.008 | 0.015 |
| ER20 | 1-13 | 21.0 | 20.0 | 17.4 | 31.5 | 23.9 | 6.4 | 4.8 | 0.005 | 0.008 | 0.015 |
| ER25 | 1-16 | 26.0 | 25.0 | 22.0 | 34.0 | 25.9 | 6.7 | 5.0 | 0.005 | 0.008 | 0.015 |
| ER32 | 1-20 | 33.0 | 32.0 | 29.2 | 40.0 | 30.9 | 7.2 | 5.5 | 0.005 | 0.008 | 0.015 |
| ER40 | 3-26 | 41.0 | 40.0 | 36.2 | 46.0 | 34.9 | 7.7 | 7.0 | 0.005 | 0.008 | 0.015 |
| ER50 | 6-34 | 52.0 | 50.0 | 46.0 | 60.0 | 46.0 | 13.4 | 8.5 | 0.005 | 0.008 | 0.015 |




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