Four Piece ER32UM M40 Collet Clamping Nuts For CNC Milling Lathe Chuck Holder Replacement Cast Steel Nut Set, Durable, Precise Fit, Ideal Spares For Machining Projects

Four-Piece ER32UM M40 Collet Nuts for CNC Holding
✔️ Pack of 4, ER32UM M40 collet nuts, cast steel, precise fit

These four collet nuts are replacement hardware designed for ER32UM M40 clamping systems used on CNC milling machines and lathes. Made from cast steel for durability, they ensure precise clamping of collets in tooling holders. Ideal as spare parts for machining projects to minimize downtime. Note: color may vary slightly due to lighting; measurement tolerance +/- 1 cm.

✅ Pack size: 4 nuts
✅ Model: ER32UM M40 Collet Nut Set
✅ Material: Cast steel
✅ Hole diameter: 16 mm (0.63")
✅ Overall size: 28 x 19 mm (D x H)
✅ Compatible with ER20 spring collets

💡 What is a collet nut used for in CNC milling and lathe setups?

A handy piece that locks tooling into the collet for steady, accurate milling.
- Collet nut provides secure grip on tool shank and alignment
- Improves milling accuracy by reducing runout and slippage
- Durable cast steel construction handles repeated tightening and heavy use
- Works with ER32UM M40 and ER20 collet systems in compatible machines