High Performance ER Collet Extension Rod For Lathe And CNC Milling Machinists, Ultra Precision Ground Straight Shank With Low Runout For C10 To C40 Sizes And Perfect Stable Cutting Action

Precision ER Extension Rod For CNC Milling Machine Cutting
✔️ Alloy Steel Build, ER20A Thread, 200mm Length, Low Runout Design

This handy tool connects directly to standard machine spindles for precision work. Suitable for light or heavy material processing without wobbling.

✅ Made from hardened alloy steel for durability
✅ Features ultra precision ground shank surface
✅ Includes secure locking nut for tight grip
✅ Works with standard ER collet systems

💡 How do extension bars improve deep cavity machining accuracy?
They increase working distance safely for tough cuts.
- Increases depth for complex milling setups
- Reduces vibration during heavy cutting passes
- Supports standard ER collet mounting

✝️