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What does ER20 collet mean?
ER collets dimensions. Size [mm]. Measurements [mm]. D2 d. D1. D2. D3. D4. L. L1**. L2. L3. L4. Drawing. ER 8. 1.0 – 2.5. 8.5. 8. 6.5. 4 13.6 2.98. 1.2. 1.5. 6.
Our High Precision “On Size” Collets have 25% longer collet bore lengths than competitors, resulting in stronger gripping power at higher RPM's. The High ...