ER25 UM M32 Thread Collet Nut With Spring Clamping Nut For CNC Milling Lathe Engraving Tools High Precision Clamping Dynamic Balance Holes Durable Cast Steel Construction For Reliable Tool Holding

High-Precision ER25-UM M32 Spring Collet Nut for CNC Tools
✔️ ER25-UM, M32 thread, 42mm OD, 20mm height, cast steel

This spring collet nut is designed for ER25 collets in CNC milling machines, engraving lathes, and machining centers. Built from heat-treated cast steel, it resists wear while delivering strong clamping force and long spindle life. The package includes 1 piece.

✅ Model: ER25-UM, M32 thread
✅ Thread pitch: 1.5 mm (0.06 in)
✅ Outer diameter: 42 mm (1.65 in); Height: 20 mm (0.79 in)
✅ Material: Cast steel, heat-treated 44-48 HRC
✅ Features: Internal dynamic balance holes to reduce wear and noise; self-loosening design
✅ Includes: 1 piece clamping nut

💡 What is a spring collet nut used for in CNC machines? This handy tool helps secure ER25 collets and maintain precise tool holding for milling, drilling, and engraving operations.
- secure tool holding for ER25 collet systems in CNC milling and drilling
- reduces run-out and improves spindle life with a balanced design
- easy installation with M32 thread and standard ER25 interface