Accupro 588513 ER40 Collet 14 Mm

Product Description

The ACCUPRO 588513 is an ER40 series collet sized at 14 mm, designed for use in ER40-compatible collet chucks on milling machines, lathes, and machining centers. The collet grips cutting tools or workpieces with radial clamping force distributed evenly around the tool shank, minimizing runout and maintaining concentricity during cutting operations. At 0.85 pounds, the 588513 is a single-piece unit sold individually. Machinists and CNC operators install this collet when tool changes require a 14 mm bore size within an ER40 chuck system.

This collet is suited for horizontal and vertical machining centers, manual mills, and lathes equipped with ER40 collet chucks. Typical applications include end mill holding, drill chuck setups, and reamer retention in production and job-shop environments. The ER40 series is a widely adopted standard in both light and heavy-duty metal cutting, making this collet a common stock item in machine shops and tool cribs.

Key Features

• ER40 collet series for use with ER40-standard collet chucks
• 14 mm bore size for direct tool or workpiece clamping
• Even radial clamping force helps maintain concentricity and reduce runout
• Sold individually — package quantity of 1
• Lightweight at 0.85 pounds for easy handling during tool changes

Compatibility

Designed as a direct-fit collet for ER40-standard collet chucks used in CNC and manual machining equipment requiring a 14 mm bore collet.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Before inserting or removing a collet, ensure the spindle is fully stopped and locked out per machine-specific procedures. Seat the collet fully into the ER40 chuck nut before threading onto the chuck body, and tighten to the chuck manufacturer's specified procedure using an appropriate ER40 spanner wrench. Inspect the collet bore and chuck taper for chips or debris before each use.