Rego-fix 7117.25000 ER25 Collet Chuck Spanner Wrench

Product Description

The REGO-FIX 7117.25000 is a spanner-style collet chuck wrench designed for use with ER25 externally threaded nuts. It provides the mechanical grip needed to properly torque and release ER25 collet nuts during toolholder assembly and disassembly. Machining centers, CNC lathes, and milling setups that use ER25 toolholders require a correctly fitting wrench to achieve consistent clamping force on the collet. Using an ill-fitting or improvised tool risks deforming the nut flats and reducing repeatability in the toolholder. The 7117.25000 is the purpose-built spanner for this task, weighing 0.21 pounds for easy bench or toolbox storage.

This wrench is intended for shops and technicians working with ER25 collet systems across general machining, production turning, and toolroom environments. It engages ER externally threaded nuts directly, making it appropriate for any standard ER25 toolholder that uses that nut style. Both setup technicians and CNC operators who manage their own tooling changes will keep this wrench at the machine or in a setup cart for routine collet swaps.

Key Features

• Spanner wrench configuration engineered specifically for ER25 externally threaded collet nuts
• Ensures proper engagement with nut geometry to avoid rounding or damaging the nut
• Lightweight at 0.21 pounds - practical for toolbox carry or machine-side storage
• Direct OEM-style fit from REGO-FIX, a manufacturer known in the precision toolholding market
• Single-piece quantity matches typical bench stock and individual replacement needs

Compatibility

Designed for use with ER25 externally threaded collet nuts. Compatible with ER25 collet chuck toolholders that use the external nut style.

Installation Notes

Collet chuck wrenches are used by machinists and CNC setup technicians during toolholder assembly and collet changes. Before changing a collet, ensure the spindle is stopped, the machine is in an E-stop or safe state, and any live tooling circuits are de-energized per facility lockout-tagout procedures. Engage the spanner fully into the nut slots before applying torque to prevent slipping and nut damage. Follow the toolholder manufacturer torque specifications for the ER25 nut when tightening.