Essential 135mm C20 ER16M Straight Shank Tool Holder Collet Chuck Spacer Shaft Extender For CNC Milling Machines Built Tough From Premium Manganese Steel With Superior Hardness And Long Lasting Performance For Heavy Duty Projects

135mm Manganese Steel Tool Holder Shaft Extension For CNC
✔️ ER16M chuck adapter 135mm extension shaft made of manganese steel

This spacer sleeve extends your tool reach inside deep holes for accurate milling operations. You typically use this on CNC routers or vertical mill setups.

✅ Heat treated manganese steel body ensures long lasting life
✅ Includes storage box and chuck wrench for convenient transport
✅ Maintains accuracy in deeper hole machining tasks easily

💡 Why choose a steel shaft extender over standard collets?
Steel offers superior stiffness for consistent results.
- Better support prevents deflection under heavy torque loads effectively
- Reduces vibration noise compared to softer materials during spinning
- Prevents premature wear when working with harder metal alloys