Rego-fix 7113.08000 ER8 Collet Chuck Spanner Wrench

Product Description

The REGO-FIX 7113.08000 is a spanner-style collet chuck wrench designed for use with ER8 mini nuts in ER collet clamping systems. This wrench provides the mechanical engagement needed to properly torque ER8 mini nuts during toolholder setup and changeover. It is a dedicated hand tool used by machinists, CNC setup technicians, and tool crib personnel working with small-bore ER8 collet chucks. Using the correct spanner wrench for the nut series ensures consistent clamping force and prevents damage to the nut flats during installation and removal.

This wrench is intended for use in machining and manufacturing environments where ER8 collet chucks are used to hold cutting tools, drills, or other rotating workholding applications. The ER8 series is among the smaller collet formats and is commonly found in high-speed spindles, precision machining centers, and compact toolholding setups. Proper nut engagement with a matched spanner wrench reduces the risk of nut damage and maintains repeatable tool runout across setups.

Key Features

• Spanner-type engagement designed specifically for ER8 mini nut geometry
• Dedicated fit to ER Mini Nuts prevents slippage and nut damage during torquing
• Compact form factor suited to tight-clearance toolholder access
• Single-piece hand tool requiring no additional accessories for use

Compatibility

Designed for use with ER Mini Nuts in the ER8 collet series. Confirm nut style is ER Mini before ordering, as ER8 standard nuts require a different wrench profile.

Installation Notes

This tool is used by machining professionals during toolholder setup and tool changes. Ensure the spindle or toolholder is secured and not rotating before engaging the wrench. Apply torque smoothly and do not use impact tools or extension handles with this spanner wrench. Follow the toolholder manufacturer's specified torque procedure for the ER8 nut series.