Accupro 587450 ER50 Collet 0.472 Inch

Product Description

The ACCUPRO 587450 is an ER50 series collet designed for use in ER50-compatible tool holders and collet chucks. It accepts a nominal collet size of 0.472 inches (12.00 mm) with a minimum collet capacity of 0.394 inches (10.0 mm), providing a secure grip range for round shanked cutting tools such as end mills, drills, and reamers. The 587450 holds a total indicator runout (TIR) of 0.01 mm, supporting accurate, repeatable tool positioning in precision machining operations. Machinists, tool and die makers, and CNC setup technicians install this collet in lathe, milling, and grinding applications where controlled runout is essential.

This ER50 collet is suited for production and job-shop machining environments where ER50 tooling systems are already in use. It is appropriate for both horizontal and vertical machining centers, as well as manual milling machines equipped with ER50 collet chucks. Typical applications include holding medium-to-large diameter round-shank tooling in operations requiring consistent radial accuracy. The collet is sold individually, making it a straightforward replacement or supplemental addition to an existing ER50 tooling setup.

Key Features

• ER50 collet series for use with ER50-compatible chucks and tool holders
• Nominal collet size of 0.472 inches (12.00 mm)
• Minimum collet capacity of 0.394 inches (10.0 mm), providing a usable clamping range
• 0.01 mm TIR for precise, repeatable tool runout control
• Sold individually — no minimum quantity beyond one unit required

Compatibility

Designed for use with ER50-series collet chucks and tool holders that accept the ER50 collet standard.

Installation Notes

Installation is performed by qualified machinists or CNC technicians. Before changing collets, de-energize the machine and confirm the spindle has come to a complete stop. Use the appropriate ER50 collet nut and spanner wrench to seat and torque the collet assembly according to the tool holder manufacturer guidelines. Inspect the collet bore and seating surfaces for debris or wear before each installation to maintain rated TIR performance.