Accupro 588525 ER40 Collet 23 Mm

Product Description

The ACCUPRO 588525 is an ER40 series collet designed to hold 23 mm shank tooling in compatible ER40 collet chucks. ER collets are precision workholding components used in CNC machining centers, milling machines, and lathes. The collet grips cutting tools, drills, reamers, and other round-shank tooling securely within the chuck body, transmitting torque while maintaining concentricity. At 0.85 pounds, this is a solid, machined component suited for production environments where consistent tool runout and clamping force matter. Machinists, CNC operators, and toolroom technicians are the primary users of this type of workholding component.

This collet is intended for use in machining applications requiring a 23 mm tool holding diameter within the ER40 collet system. The ER40 series is a widely adopted industry-standard collet format used across a broad range of CNC and manual machine tools. It is appropriate for both light finishing passes and heavier roughing operations where a secure, repeatable tool grip is required. Typical installation settings include production machine shops, toolrooms, and maintenance machining environments.

Key Features

• ER40 collet series, compatible with standard ER40 collet chucks
• 23 mm collet holding diameter for large-shank tooling
• Precision ground for consistent concentricity and reduced tool runout
• Rated clamping pressure of 1000 units per manufacturer specification
• Sold individually, no minimum order quantity beyond one unit

Compatibility

Designed for use with standard ER40 collet chucks on CNC machining centers, milling machines, and lathes that accept the ER40 collet format. No specific machine model compatibility was provided by the manufacturer for this part number.

Installation Notes

Installation is performed by machinists or CNC operators. Before installing or removing a collet, ensure the machine spindle is fully stopped and locked out per shop lockout/tagout procedures. Seat the collet into the ER40 chuck nut before threading the assembly onto the chuck body — never tighten the nut onto the chuck without the collet seated first. Inspect the collet bore and chuck taper for chips or contamination before each use to maintain clamping accuracy.