Parlec ER40-0218 ER40 Collet 0.218 Inch

Product Description

The PARLEC ER40-0218 is an ER40 series collet designed for use in CNC machining centers, milling machines, and similar rotating spindle equipment. It accepts workpieces and cutting tools up to 0.218 inches in diameter, with a minimum collet capacity of 0.179 inches, giving it a clamping range suited to standard end mills, drills, and reamers in that size window. The overall length is 1.811 inches. Machinists and toolroom technicians install this collet into an ER40-compatible collet chuck or tool holder to achieve accurate, repeatable tool runout during cutting operations.

This collet is appropriate for job shops, production machining environments, and maintenance toolrooms running ER40 tooling systems. It fits standard ER40 collet chucks used on vertical and horizontal machining centers, CNC lathes with live tooling, and manual mills equipped with ER40 holders. The 0.218-inch bore size is well suited for holding fractional and wire-gauge cutting tools commonly used in general-purpose metal removal and light finishing work.

Key Features

• ER40 series collet with 0.218 inch maximum clamping capacity
• Minimum collet capacity of 0.179 inches provides a defined clamping range
• Overall length of 1.811 inches for compatibility with standard ER40 chuck depths
• Designed for accurate tool holding with repeatable runout performance
• Single-piece unit sold individually, no additional components required

Compatibility

Designed as a direct-fit collet for ER40-compatible collet chucks and tool holders used in standard CNC and manual machining applications.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before installing or changing collets, the machine spindle must be fully stopped and locked out per shop lockout/tagout procedures. Seat the collet into the collet nut before threading onto the chuck body, and use a calibrated torque wrench appropriate for ER40 collet nuts to achieve proper clamping force without damaging the collet taper. Inspect the collet bore and chuck taper for chips or contamination before each use.