Parlec 5UMER16-0218 ER16 Collet 0.2188 Inch

Product Description

The PARLEC 5UMER16-0218 is an ER16 series precision collet designed to hold cutting tools and workpieces in CNC machining centers, milling machines, and similar rotating spindle equipment. It accepts a clamping diameter of 0.2188 inches (7/32 inch) with a minimum collet capacity of 0.179 inches, allowing it to grip a range of shank sizes within that window. The overall length measures 1.082 inches and the total indicated runout (TIR) is held to 0.0002 inches, making it suitable for applications where concentricity and tool accuracy directly affect part quality. Machinists and CNC operators install this collet as part of routine tooling setups or when replacing a worn or damaged collet in an ER16-compatible chuck.

This collet is used in production machining, tool and die, and general metalworking environments where ER16 toolholding systems are standard. It fits residential shop machinery as well as light industrial CNC equipment. Typical applications include end milling, drilling, reaming, and tapping where a secure, accurate tool grip is required. The 7/32 inch capacity makes it a common choice for holding small-diameter end mills and drill shanks in precision work.

Key Features

• 0.2188 inch (7/32 inch) clamping diameter for small-diameter tooling
• 0.0002 inch TIR for high concentricity and accurate tool positioning
• 1.082 inch overall length fits standard ER16 chuck bodies
• Minimum collet capacity of 0.179 inches accommodates a range of shank diameters
• Lightweight at 0.06 pounds for easy handling during tooling changes

Compatibility

Designed as a direct-fit replacement or spare for ER16-compatible collet chucks used in CNC machining centers, manual milling machines, and similar spindle toolholding systems that accept the ER16 collet series.

Installation Notes

This collet is installed by machinists or CNC operators performing tooling setup or maintenance. Always power down and lock out the machine spindle before removing or installing collets. Inspect the collet, chuck bore, and clamping nut for debris, wear, or damage before assembly, as contamination directly affects TIR. Use the appropriate ER16 spanner wrench and clamping nut torque procedure specified by the chuck manufacturer.