Accupro 587362 ER32 Collet 0.157 Inch 4.00mm

Product Description

The ACCUPRO 587362 is an ER32 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle equipment that accept the ER32 collet standard. With a collet size of 0.157 inches (4.00mm) and a Total Indicator Runout (TIR) of 0.01mm, this collet delivers precise tool holding for small-diameter cutting tools including end mills, drills, and reamers. The minimum collet capacity is 0.118 inches (3.0mm), giving it a usable clamping range suited to close-tolerance applications. It weighs approximately 1 pound and ships as a single-unit package.

This collet is suited for precision metalworking and machining operations where tight runout tolerances are required. Typical applications include production milling, boring, and drilling in both job shop and manufacturing environments. It fits any spindle or toolholder that accepts the ER32 collet standard, making it a common choice for machinists running standard ER32 collet chucks on vertical or horizontal machining centers.

Key Features

• ER32 series collet with 0.157 inch (4.00mm) nominal collet size
• 0.01mm TIR for precise, repeatable tool holding
• Minimum collet capacity of 0.118 inches (3.0mm) for small-diameter tooling
• Single-unit packaging for individual replacement or tooling buildout
• Compact and lightweight at approximately 1 pound

Compatibility

Designed for use with ER32-standard collet chucks and toolholders commonly found on CNC machining centers, manual mills, and spindle fixtures that accept the ER32 collet form factor.

Installation Notes

Installation is performed by a machinist or toolroom technician. Before installing or removing the collet, ensure the spindle is fully stopped and the machine is in a safe, locked-out state. Insert the collet into the ER32 collet nut before threading onto the chuck body, following standard ER collet assembly procedure. Use a proper collet wrench to tighten to the chuck manufacturer's specified torque range — do not over-tighten, as this can damage the collet bore and reduce TIR performance.