ER25 A M32 Collet Clamping Nut With Dynamic Balance Holes For CNC Lathe And Milling Tool Holders Built From 40Cr Alloy Steel For High Strength Precision Ground For High RPM Stability And Reduced Runout Black

ER25 Collet Nut with Dynamic Balance Holes for High RPM CNC
✔️ ER25-A(M32) collet nut, 40Cr steel, HRC48-50, single unit

This ER25-A(M32) collet nut is designed for ER25 tool holders in CNC lathes and milling machines. Made from 40Cr alloy steel with heat treatment, it provides strong clamping and durable performance under high-speed machining.

✅ Thread diameter: 32 mm (1.26"), Outer diameter: 42 mm (1.65"), Thickness: 22 mm (0.87"), Hex width: 38 mm (1.50")
✅ Material: 40Cr alloy steel, hardness HRC48-50, heat-treated for durability
✅ Balance holes enable high RPM stability and reduced runout
✅ Compatible with ER-style tool holders, extension bars, drill bits, and boring tools

Dimension	Size
Thread diameter	32 mm / 1.26"
Outer diameter	42 mm / 1.65"
Thickness	22 mm / 0.87"
Hex width	38 mm / 1.50"
Thread pitch	1.5 mm / 0.06"

💡 What is an ER collet nut used for in CNC machining?
This handy nut secures cutting tools in ER-style holders to maintain precision.
- Handy for securing tools in ER-style holders to keep accuracy
- Reduces runout at high RPM for cleaner finishes
- Compatible with ER25 collets and M32 threads across many tool holders
- Heat-treated 40Cr alloy steel offers durability in tough work environments