CAT40 ER20 Collet Chuck with 2.76 Inch Gage Length and 0.0001 Inch Runout, Beefy Tool Holder for Pro Grade Milling, Rock Solid Stability, Up To 8000 RPM, Strong Finish, Smooth Operation

CAT40 ER20 Collet Chuck: 2.76in Gage, 0.0001in Runout ✔️ Gage length 2.76in (70.1 mm), pack of 4, 8000 RPM, 0.0001in runout

This precision tool holder is designed for CAT40 spindles and ER20 collets, delivering rock-solid stability in pro-grade milling. Ideal for CNC mills and manual machines where repeatable accuracy matters.

✅ Gage length: 2.76in (70.1 mm)
✅ Runout accuracy: 0.0001in (0.004 mm)
✅ RPM: Up to 8000 r/min
✅ Finish: bright, smooth surface from special workmanship

💡 What is a CAT40 ER20 collet chuck used for in precision milling operations?

In short, it's a handy tool holder that keeps cutting tools aligned and secure, boosting accuracy in milling setups.

- High rigidity for stable toolholding in CAT40/ER20 systems
- Precision runout control to 0.0001in (0.004 mm)
- Up to 8000 RPM capability for efficient milling
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