Parlec EROS20-7MM ER20 Collet 7mm

Product Description

The PARLEC EROS20-7MM is an ER20 series collet with a 7mm clamping capacity, designed for use in ER20-compatible collet chucks on CNC machining centers, milling machines, and drill presses. ER collets provide a controlled, concentric grip on cutting tools and workholding shanks, making them a standard choice in precision machining environments. At 0.1 pounds, this collet is machined to ER20 series tolerances and delivers consistent runout performance across repeated tool changes. It is installed and serviced by machinists and CNC setup technicians in production and job-shop settings.

This collet is suited for use wherever ER20 toolholding is required. Typical applications include light to medium milling, drilling, tapping, and reaming operations using tooling with a 7mm shank diameter. It fits into any standard ER20 collet chuck and is tightened using a corresponding ER20 clamping nut and spanner wrench. It is a common replacement or additional collet for shops running metric tooling on ER20 chuck bodies.

Key Features

• ER20 series collet accepting 7mm shank diameter tooling
• Single-piece collet construction for repeatable concentricity
• Compatible with standard ER20 collet chucks and clamping nuts
• Lightweight at 0.1 pounds for easy handling during tool changes
• Metric sizing for use with metric-shank cutting tools

Compatibility

Designed as a replacement or spare ER20 series collet for use with any ER20-compatible collet chuck body accepting 7mm tool shanks.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the chuck body is clean and free of chips before seating the collet. Insert the collet into the ER20 nut before threading onto the chuck body, and tighten using the appropriate ER20 spanner wrench to the chuck manufacturer's recommended procedure. Do not overtighten or use impact tools on the clamping nut.