CNC Collet Nut for ER25 Standard 42mm Length 18mm Body One Quarter Inch Shank Top Notch Precision Spring Nut for ER25 Tool Holders and Milling Machines Suitable for CNC Machining Centers and Milling Applications With Tight Tolerances

ER25 Collet Nut for CNC Milling, single piece, 42mm length
✔️ 18mm body, 11.5mm dia, ER11, 9mm D1, 2mm B, 1/4in shank, 1pc

This high-precision spring nut secures tool holders in CNC milling centers and milling machines, providing stronger rigidity and reducing vibration for better cut quality. Pack size: 1 piece.

✅ 11.5mm diameter
✅ 18mm overall length
✅ ER11 collet standard
✅ 9mm D1
✅ 2mm B
✅ 1/4in shank
✅ Tight tolerance spring nut for CNC tool holders and milling machines

💡 What is an ER collet nut used for in CNC milling and toolholding setups?

Here's a handy answer in quick bullets:

- Improves tool retention and minimizes runout in CNC milling operations. - Helps keep collets aligned and reduces vibration for longer tool life. - Commonly paired with ER-compatible tool holders on machining centers.