Parlec TWN-40ERNW ER40 Collet Chuck Torque Wrench Head

Product Description

The PARLEC TWN-40ERNW is a torque wrench head designed for use with ER40 collet chucks. It provides a controlled, repeatable clamping force when tightening ER40 collet nuts, helping ensure consistent tool runout and secure workholding during machining operations. This wrench head is used by machinists and CNC setup technicians who require precise collet preload without overtightening. Weighing 0.44 pounds, it is compact enough for routine use at the machine. It is a straightforward, purpose-built tool for ER40 collet chuck assemblies in production and job shop environments.

The TWN-40ERNW is suited for shops running ER40 collet chucks on CNC machining centers, lathes, or manual mills. The torque wrench head format allows technicians to apply the manufacturer-specified clamping torque directly to the collet nut, reducing the risk of under- or over-tightening. It is a practical addition to any toolroom or CNC setup station where ER40 toolholders are in regular use.

Key Features

• Torque wrench head style for controlled collet nut tightening
• Specific to ER40 collet series for proper fit and engagement
• Lightweight at 0.44 pounds for easy handling at the spindle
• Supports consistent tool clamping force across repeated setups

Compatibility

Designed for use with ER40 collet chuck assemblies and compatible ER40 collet nuts.

Installation Notes

This torque wrench head is installed and used by machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and all motion has ceased before handling collet chucks or tightening collet nuts. Follow the collet chuck manufacturer's specified torque value when using this wrench head. Do not use additional leverage or impact force on the wrench head, as this may damage the collet nut or chuck body.