Accupro 588374 ER32 Collet 16 Mm

Product Description

The ACCUPRO 588374 is an ER32 series collet sized for 16 mm tool shanks. ER collets are the most widely used workholding device in CNC machining centers, milling machines, and lathes. This collet compresses radially around the tool shank when drawn into a matching ER32 nut and holder, creating a secure, concentric grip. The ER32 collet range is a go-to choice for machinists, tool-and-die makers, and CNC operators who need reliable, repeatable tool holding across a range of cutting tools including end mills, drills, and reamers. The 588374 ships as a single unit and is ready for immediate use in any standard ER32-compatible holder.

This collet is suited for use in production machining environments, job shops, and maintenance machine shops. It fits any spindle or toolholder ground to the ER32 standard taper. Common applications include vertical machining centers, horizontal mills, CNC lathes with live tooling, and manual knee mills equipped with ER32 chucks. Machinists running 16 mm shank tooling in high-volume or precision setups will find this collet a direct fit for their existing ER32 toolholder inventory.

Key Features

• ER32 collet series — fits all standard ER32 holders and nuts
• 16 mm collet size for secure clamping of 16 mm shank tools
• 1000 psi rated clamping pressure for firm, repeatable tool grip
• Single-piece packaging — no minimum quantity requirement beyond one unit
• Radial compression design provides concentric tool holding across the clamping range

Compatibility

Designed for use with any ER32-standard collet chuck, toolholder, or collet block accepting 16 mm ER32 collets.

Installation Notes

Installation is performed by the machinist or toolroom technician. Before changing collets, power down the machine and verify the spindle has come to a full stop. Seat the collet into the ER32 nut before threading the assembly onto the holder — never insert a bare collet into a spinning holder. Torque the collet nut to the toolholder manufacturer's specification using an appropriate ER32 spanner wrench to ensure proper clamping force and runout performance.