ER16 A M19 Collet Nut For CNC Milling Chuck Holder Lathe Replacement Hex Clamping Nut Cast Steel 13mm Hole About 24 By 20 mm Overall Size Fits Most Tool Holders Heavy Duty Beefy Steel Build

1pc ER16-A Collet Nut for CNC Milling Holders, 13mm Hole
✔️ 1 x ER16-A collet nut, 13mm bore, M19 x 1 thread, hex 22mm

ER16-A collet nut is a heavy-duty cast steel fastener designed to secure ER16 tooling in CNC milling chucks and lathe holders. This replacement nut keeps tooling firmly clamped for accurate, repeatable milling and efficient setups.

✅ Model: ER16-A
✅ Material: Cast Steel
✅ Hole Diameter: 13 mm (0.5")
✅ Thread: M19 x 1
✅ Overall Size: 24 x 20 mm (D x H)
✅ Hex Width: 22 mm
✅ Package Content: 1 x Collet Nut

💡 What is a collet nut used for in CNC tooling?

This handy piece locks the collet to the spindle, keeping tooling aligned and stable during milling. - Provides secure tightening for ER16-A collet systems - Improves repeatability by maintaining clamping force - Compatible with 13mm bore and M19 threads for common chucks