Parlec ERS25-0275 ER25 Collet 7mm

Product Description

The PARLEC ERS25-0275 is an ER25 series collet designed to hold 7mm diameter tooling in compatible ER25 collet chucks. With an overall length of 1.338 inches and an overall diameter of 1.023 inches, this collet provides secure, concentric clamping for end mills, drills, reamers, and other rotary cutting tools. It is rated to 1800 units of clamping pressure, ensuring reliable tool retention at operating speeds. Machinists and CNC setup technicians install this collet as a standard workholding component in milling, drilling, and tapping applications on both manual and CNC machine tools.

This collet is suited for use in ER25 collet chucks in production and job-shop environments. Typical applications include light to medium milling and drilling operations where precise tool runout control is required. The ER25 collet series is a widely adopted industry standard, making this collet a common replacement or additional collet for shops running ER25 tooling systems. It handles 7mm shank tooling and is appropriate for both horizontal and vertical spindle configurations.

Key Features

• ER25 collet series - compatible with standard ER25 collet chucks
• 7mm collet size for secure retention of 7mm shank tooling
• 1.338 inches overall length for standard ER25 chuck depth
• 1800 clamping pressure rating for reliable tool retention
• 1.023 inches overall diameter matching ER25 chuck bore requirements

Compatibility

Designed as an OEM-style replacement or additional collet for ER25 series collet chuck systems accepting 7mm tooling shanks.

Installation Notes

This collet is installed by machining professionals and CNC setup technicians. Before changing collets, ensure the machine spindle is fully stopped and the chuck is de-energized or locked out per shop lockout/tagout procedures. Seat the collet fully into the ER25 nut before threading onto the chuck body, and torque the collet nut to the chuck manufacturer's specification using the appropriate ER spanner wrench. Inspect the collet and chuck bore for chips or contamination before assembly to maintain runout accuracy.