Beast Mode CNC ER11A Tool Holder 70 For BT40 Spindle, Ultra Precise 0.005mm Concentricity Milling Arbor, Wrench Included, Lathe And Milling Center Ready, Carburized 20CrMnTi Steel Build For Rock Solid Performance

Ultra-Precise BT40 ER11A Tool Holder, 0.005mm Concentricity
✔️ Pack: 1 piece; includes wrench and a storage box for easy setup

Designed for BT40 spindle setups, this CNC ER11A 70-mm tool holder delivers precise mounting for milling and turning centers. It features a rigid integrally formed design for high-accuracy machining and comes as a complete package with 1 holder, 1 wrench, and 1 storage box.

✅ Concentricity: 0.005 mm ensures tight tolerance
✅ Clamping range: 1-7 mm with ER11 chuck for secure grip
✅ Material: carburized 20CrMnTi steel, hardness > HRC56
✅ Speed rating: up to 10000 rpm for fast, precise machining

💡 What is a tool holder used for in CNC machining and why pick a high-precision ER11A?

It's handy to know how precise holders improve results.

- Concentricity and rigidity improve repeatability
- Carburized steel boosts wear resistance for long life
- ER11 chuck provides secure grip and easy tool changes
- BT40 compatibility keeps your setup flexible
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