Parlec ER16-0375 ER16 Collet 3/8 Inch

Product Description

The PARLEC ER16-0375 is an ER16-series precision collet designed to hold round shanks in CNC machining centers, milling machines, and similar rotating spindle equipment. It accepts a 3/8 inch (0.375 inch) nominal shank with a minimum collet capacity of 0.336 inches, giving operators a controlled clamping range for close-tolerance work. Overall length is 1.082 inches and overall diameter is 0.669 inches. Machinists and toolroom technicians install this collet into a compatible ER16 collet chuck or holder to secure end mills, drills, reamers, and other straight-shank cutting tools during metal cutting and finishing operations.

This collet is suited for light-duty to medium-duty machining applications in production and job-shop environments. It fits any standard ER16 collet chuck or toolholder that conforms to the ER16 collet system specification. Typical use cases include CNC milling, drilling, tapping, and reaming where a 3/8 inch shank tool is required. The compact 1.082 inch overall length makes it appropriate for setups with limited spindle clearance.

Key Features

• ER16 collet series - fits any standard ER16-compliant chuck or holder
• 0.375 inch nominal collet size with 0.336 inch minimum capacity for a usable clamping range
• 1.082 inch overall length suits setups with tight spindle clearance
• 0.669 inch overall diameter consistent with ER16 system dimensions
• Lightweight at 0.06 pounds - minimal added mass in high-speed spindle assemblies

Compatibility

Designed for use with ER16-series collet chucks and toolholders that accept the ER16 collet system. No specific model compatibility data was provided; verify that the target chuck or holder is rated for the ER16 collet series before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before inserting or removing the collet, power down and lock out the machine spindle per applicable OSHA lockout/tagout procedures. Seat the collet fully into the ER16 chuck nut before threading the nut onto the holder body. Use the correct ER16 spanner wrench and torque to the chuck manufacturer specification - do not overtighten, as this can distort the collet bore and reduce tool-holding accuracy.