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Manufacturer number:
ER collet, ER 20, Nominal clamping ⌀ d: 4mm
Article no.: 308930 4
Article code:
- Standard: ISO 15488-B
- Concentricity: ≤ 10
Product details
Technical Data
| Nominal clamping ⌀ d | 4 mm | |
| Adapter | ER 20 | |
| Standard | ISO 15488-B | |
| Concentricity | ≤ 10 µm | |
| Type | 428 E | |
| External ⌀ D | 21 mm | |
| Overall length L | 31.5 mm | |
| Type of product | Collet |
Identification numbers & Classifications
| Article number | 308930 4 | |
| EAN / GTIN | 4045197151230 | |
| Manufacturer number | 308930 4 |
Description
Version:
Through hardened and ground. Polished.
Note:
The collet clamping ⌀ range is always up to 1 mm less than nominal, e.g. ⌀ 10 − 9 mm, except for ⌀ 1, 1.5 and 2 (where it is only 0.5 mm).