高精度5μ筒夹表面涂层外观特点：
防锈蚀
提高表面硬度、耐磨性
清洁度更好，精度稳定
表面更光滑，手感舒适，外观更漂亮
Advantage:
Anti-rust
Wear-resisting and Surface hardness improved.
Precision stability, good cleaning.
Smooth surface,Beautiful appearance.
材质：JIS-SUJ2 硬度：46-50HRC 高精度 High Accuracy
Material: JIS-SUJ2 Hardness:46-50HRC
广泛应用于镗、铣、钻、攻丝、磨、雕刻等加工。
Suitable for boring,milling,drilling,tapping,grinding,carving processing.
| 型号 Model No. | dh7 | D | D1 | D2 | L | L1 | L2 | L3 | 弹性收缩量 Collapsible Capacity |
|---|---|---|---|---|---|---|---|---|---|
| ER8 | 1.0-5.0 | 8 | 8.45 | 6.5 | 13.5 | 2.98 | 1.5 | 1.2 | 0.5 |
| ER11 | 1.0-7.0 | 11 | 11.5 | 9.5 | 18 | 3.8 | 2.5 | 2 | 0.5 |
| ER16 | 1.0-2.5 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4 | 2.7 | 0.5 |
| ER16 | >2.5-10.0 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4 | 2.7 | 1 |
| ER20 | 1.0-2.5 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 | 0.5 |
| ER20 | >2.5-13.0 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 | 1 |
| ER20 | 1.0-2.5 | 25 | 26 | 22 | 34 | 6.66 | 5 | 3.1 | 0.5 |
| ER25 | >2.5-16.0 | 25 | 26 | 22 | 34 | 6.66 | 5 | 3.1 | 1 |
| ER25 | 2.0-2.5 | 32 | 33 | 29.2 | 40 | 7.16 | 5.5 | 3.6 | 0.5 |
| ER32 | >2.5-20.0 | 32 | 33 | 29.2 | 40 | 7.16 | 5.5 | 3.6 | 1 |
| ER32 | 3.0-26.0 | 40 | 41 | 36.2 | 46 | 7.66 | 7 | 4.1 | 1 |
| ER40 | 6.0-10.0 | 40 | 52 | 46 | 60 | 12.6 | 8.5 | 5.5 | 1 |
| ER50 | >2.5-20.0 | 50 | 52 | 46 | 60 | 12.6 | 8.5 | 5.5 | 2 |
