Iscar 4500466 ER32 Collet 0.375 in 0.0004 Tir

Product Description

The ISCAR 4500466 is an ER32 series collet designed for use in ER32-compatible collet chucks on CNC machining centers, milling machines, lathes, and drilling equipment. It accepts tooling with a 0.375 inch (3/8 inch) shank diameter and holds a total indicator runout (TIR) of 0.0004 inches, providing the concentricity accuracy required for precision cutting operations. Weighing 1 pound, this collet is a compact, high-precision workholding component installed by machinists and tool-room technicians in metalworking and manufacturing environments.

This collet is suited for use in production machining, job shops, and tool rooms where repeatable tool holding accuracy is critical. The ER32 collet series is one of the most widely adopted standards in CNC and manual machining, making this collet applicable across a broad range of spindle configurations and chuck bodies that accept ER32 tooling. It is typically used in milling, drilling, reaming, and tapping operations requiring consistent shank grip on 0.375 inch tooling.

Key Features

• ER32 collet series for broad compatibility with ER32 chucks and tooling systems
• 0.375 inch (3/8 inch) collet bore accepts standard shank tooling
• 0.0004 inch TIR for high-concentricity tool holding
• UNSPSC Code 27112800 classification for industrial tooling procurement
• Single-piece packaging with minimum order quantity of 1

Compatibility

Designed as a direct-fit replacement collet for ER32-standard collet chucks used in CNC and manual machining equipment. Specific chuck or machine model compatibility was not provided in the available product data; verify ER32 collet series acceptance with your chuck manufacturer before installation.

Installation Notes

ER collets are installed by machinists and tool-room technicians using an appropriate ER32 collet nut and spanner wrench. Ensure the spindle or chuck is fully powered down and locked out before inserting or removing the collet. Clean the collet bore, taper, and chuck body seating surface before assembly to maintain TIR performance. Do not exceed the collet's specified clamping range, and inspect collets regularly for wear, chips, or deformation that can affect runout.