Accupro ER32HP 09.52 ER32 Collet 3/8 Inch

Product Description

The ACCUPRO ER32HP 09.52 is an ER32-series collet designed for use in CNC machining centers, milling machines, and toolholding systems that accept ER32 collet chucks. With a collet size of 3/8 inch and a Total Indicator Runout (TIR) of 0.0002 inch (0.005 mm), this collet delivers the tight tolerances required for precision cutting tool retention. It is installed by machinists and tool crib technicians in production and job-shop environments. The compact form factor fits standard ER32 chucks without modification.

This collet is used in applications where accurate tool concentricity is critical, including finish milling, drilling, reaming, and tapping operations. It is suited for both light-duty and production machining setups using ER32-compatible spindle tooling. The 3/8 inch bore accommodates tooling shank diameters at that nominal size.

Key Features

• ER32 collet series for use with standard ER32 collet chucks
• 3/8 inch collet bore size for matching shank tooling
• TIR of 0.0002 inch (0.005 mm) for precision tool concentricity
• Compact dimensions: 1.23 inches height, 1 inch width, 1 inch length
• Lightweight at 0.35 pounds for easy handling during tool changes

Compatibility

Designed as an OEM-style replacement collet for use in any toolholding system or collet chuck that accepts the ER32 collet series with a 3/8 inch bore size.

Installation Notes

ER32 collets are installed and removed by machinists using the appropriate ER32 collet nut and spanner wrench. Ensure the spindle or collet chuck is fully stopped and the machine is powered down before changing collets. Inspect the collet bore and chuck taper for chips or contamination prior to installation, as debris will degrade TIR performance. Follow the machine tool manufacturer torque guidelines for the collet nut.