ER11A 70 CNC Tool Holder For Precision Machining Center Milling Arbor 0.005mm Accuracy ER11 Chuck With Wrench Built Tough From 20CrMnTi Steel Lathe And Milling Accessory Ready For Heavy Duty Use

High-Precision CNC Tool Holder 70 with 0.005mm Accuracy
✔️ 0.005mm accuracy, 1-7mm clamp, 10000rpm, hardened steel

This BT40-ER11A-70 CNC tool holder is a precision machining accessory designed for CNC milling centers and lathes, delivering high concentricity and rigid grip for accurate tool positioning in heavy-duty production environments.

✅ 20CrMnTi steel with carburizing and quenching; hardness >HRC56
✅ 0.005mm accuracy and high concentricity
✅ Clamping range 1-7mm for tool versatility
✅ Withstand speeds up to 10000 rpm for high-speed machining
✅ Complete package includes tool holder, wrench, and storage box

💡 What is a CNC tool holder used for in precision machining?

In short, it securely holds cutting tools in the spindle to keep your cuts precise. Handy for maintaining concentricity and repeatable results in milling and turning setups.

- Secure tool retention to minimize runout
- Enables stable high-speed performance up to 10000 rpm
- Compatible with BT40 and ER-style tooling for flexibility
- Improves repeatability in precision machining workflows
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