4 Piece ER11M Collet Clamping Nuts For CNC Milling Chuck Holder Lathe ER20M Type Cast Steel Replacement Set, Heavy Duty Nuts For Secure Tool Holding And Easy Install
✔️ Cast steel ER20-M collet nuts, 16mm hole, 28x19mm, 4 pcs
These four-piece nuts are cast steel replacements designed for ER20-M type collet systems, commonly used with CNC milling chucks and lathe collet holders. They provide a secure, easy-install option for replacing damaged clamping nuts and keeping your tooling setup tight and reliable. Pack of 4 ensures you have spares on hand for quick maintenance.
✅ Material: Cast steel
✅ Model: ER11M (ER20-M type)
✅ Hole diameter: 16 mm (0.63")
✅ Overall size: 28 x 19 mm (1.10" x 0.75")
✅ Pack size: 4 pieces
💡 What is a collet nut used for in CNC milling and turning? A handy piece that secures cutting tools in chucks and collets. - Handy for tool holding in milling and lathe work - Replaces worn or broken nuts in ER20-M collet systems - Improves stability and alignment for precision cuts