Accupro 776928 ER32 Collet Chuck Spanner Wrench

Product Description

The ACCUPRO 776928 is a spanner wrench designed for use with ER32 collet chucks. It provides the proper engagement needed to tighten and loosen ER32 collet nuts accurately during tooling changes on milling machines, machining centers, and CNC lathes. Spanner wrenches of this type are the correct tool for applying controlled torque to the collet nut without damaging the nut face or the collet body. Machinists, toolroom technicians, and CNC setup operators use this wrench as part of standard tooling change procedures. The 776928 weighs 1 pound and ships as a single unit.

This wrench is used in machine shops, toolrooms, and manufacturing environments wherever ER32 collet chucks are in service. ER32 is one of the most common collet series used in CNC machining and manual milling operations, covering a wide range of cutter and workholding shank diameters. The spanner style provides positive engagement with the collet nut slots, making it the preferred wrench type for production and maintenance use.

Key Features

• Spanner wrench type for ER32 collet nut engagement
• Compatible with the ER32 collet series standard
• Single-piece construction for direct hand torque application
• Weighs 1 pound for easy bench and toolcrib storage

Compatibility

Designed for use with ER32 collet chucks and collet nuts conforming to the ER32 collet series standard.

Installation Notes

This wrench is used by machinists and CNC setup technicians during tooling changes. Always ensure the machine spindle is fully stopped and the control is in an e-stop or tool-change mode before engaging the collet chuck. Use the spanner wrench only on the collet nut — do not apply force to the collet body or chuck taper. Follow the toolholder manufacturer's torque guidelines for the collet size in use.