Accupro ER32HP 08.73 ER32 Collet 11/32 Inch

Product Description

The ACCUPRO ER32HP 08.73 is an ER32-series precision collet sized at 11/32 inch, designed for use in CNC machining centers, milling machines, and other rotating spindle equipment that accept ER32 collet chucks. This collet grips round-shank cutting tools and workholding components with a total indicator runout (TIR) of 0.0002 inch (0.0050 mm), making it suitable for applications where concentricity and surface finish are critical. The overall collet length is 40.0 mm. It is installed and serviced by machinists, tool-room technicians, and CNC setup personnel in manufacturing and job-shop environments.

This collet fits standard ER32 collet chucks and holders used across a wide range of horizontal and vertical machining centers, manual knee mills, and turning centers equipped with live tooling. The 11/32 inch bore accommodates tooling with a matching shank diameter. It is a direct-fit replacement in any spindle or toolholder conforming to the ER32 collet standard, making it a practical field replacement or spare for production tooling inventories.

Key Features

• ER32 collet series — fits all standard ER32-compliant chucks and holders
• 11/32 inch bore for precise gripping of matching-diameter tool shanks
• TIR of 0.0002 inch (0.0050 mm) for high-concentricity, precision machining applications
• 40.0 mm overall length consistent with ER32 series geometry
• Sold individually — one collet per package

Compatibility

Designed as a standard ER32-series collet for use in any ER32-compliant collet chuck or toolholder. Specific chuck or machine compatibility was not provided in the product data; verify that your chuck is rated for the ER32 collet standard before installation.

Installation Notes

ER32 collets are installed and removed by qualified machinists using the appropriate ER32 collet nut and spanner wrench — do not use pipe wrenches or improvised tools, as this can damage the collet taper or chuck body. Always de-energize and lock out the machine spindle before changing collets. Inspect the collet bore and chuck taper for chips, burrs, or corrosion before seating the collet, as contamination directly affects TIR and tool retention. Follow the machine manufacturer's recommended clamping torque for the collet nut size.