Accupro 587312 ER16 Collet 0.236 Inch Precision

Product Description

The ACCUPRO 587312 is an ER16 series collet designed for precision toolholding in CNC machining and milling applications. With a collet size of 0.236 inches (6.00 mm) and a total indicated runout (TIR) of 0.01 mm, this collet delivers the concentricity required for accurate cutting tool retention. The minimum collet capacity is 0.196 inches (5.0 mm), giving the collet a usable clamping range suitable for a variety of shank diameters. Machinists and toolroom technicians working with ER16-compatible spindles and chucks will find this collet a direct-fit solution for maintaining tight tolerances on rotating tools.

The 587312 is suited for use in ER16 collet chucks mounted on CNC machining centers, manual mills, lathes, and high-speed spindles where consistent grip and minimal runout are critical. It is appropriate for light to medium cutting operations using end mills, drills, reamers, and other straight-shank tooling within the collet capacity range. This collet is a standard single-piece unit packaged individually and is well suited for production shops, toolrooms, and maintenance environments that rely on the ER16 standard.

Key Features

• ER16 collet series — compatible with standard ER16 collet chucks and holders
• 0.236 inch (6.00 mm) collet size with 0.196 inch (5.0 mm) minimum clamping capacity
• 0.01 mm TIR for high concentricity and reduced tool runout
• Single-piece package quantity for individual replacement or inventory building
• Weighs 1 pound — compact and lightweight for easy handling and storage

Compatibility

Designed for use with standard ER16 collet chucks and toolholding systems accepting the ER16 collet series.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before installing or removing the collet, ensure the spindle is fully stopped and the machine is powered down or in a safe lockout state. Seat the collet fully into the ER16 chuck before threading the nut to avoid damage to the collet taper. Use a properly sized ER collet wrench and chuck wrench for tightening — do not use makeshift tools that could damage the nut or collet body.