Technical data:
Nominal clamping ⌀ d:8 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
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).