ER11A 70 CNC Tool Holder for BT40 Spindle Ultra Precision 0.005mm Accuracy Milling Arbor with Wrench High Concentricity for Lathe and CNC Machining Tools Built Pro Grade from 20CrMnTi Steel

Ultra-precise ER11A 70 CNC Tool Holder for BT40 Spindles
✔️ Includes 1 Holder, 1 Wrench, 1 Storage Box for complete pack

This ER11A-70 CNC tool holder fits BT40 spindles and provides a high-concentricity mounting solution for CNC milling and turning. It ensures tight tool alignment for repeatable, accurate cuts in demanding machining tasks.

✅ 0.005 mm accuracy for tight tolerances
✅ High concentricity for precise finishing
✅ 20CrMnTi steel with carburizing and quenching, hardness > HRC56°
✅ Clamping range 1-7 mm with ER11 chuck
✅ Up to 10000 rpm for fast, efficient cycles
✅ Pack: 1 Holder, 1 Wrench, 1 Storage Box

💡 What is the purpose of an ER11A 70 CNC tool holder in BT40 spindle systems?

It's a precise mounting solution that securely holds cutting tools with minimal runout.

- High-precision tool clamping for ER11 chuck
- Compatible with BT40 spindles for CNC milling and turning
- Supports 1-7 mm tool shanks for flexibility
- Handles speeds up to 10000 rpm to boost productivity
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