This is a replacement ER16A Collet Nut for the ER16 Collet holder. It has M19 thread on the inside. There is also a M22 thread option available, so make sure of the size you need.
Specifications:
- Collet size: ER16
- External mechanical interface: ER16 A (Hexagon interface)
- Internal Thread: M19 x 1.0
