Parlec ER25-0275 ER25 Collet 0.2756 in Bore

Product Description

The PARLEC ER25-0275 is an ER25 series collet designed for use in ER25-compatible tool holders and collet chucks. It accepts workpieces and cutting tools up to 0.2756 inches (7.00 mm) in diameter, with a minimum collet capacity of 0.2362 inches (6.0 mm), giving it a clamping range suited for a variety of shank sizes within that span. The overall length is 1.338 inches. Machinists and toolroom technicians rely on ER collets for their versatility across milling, drilling, tapping, and reaming operations on CNC and manual machine tools.

This collet fits standard ER25 collet chucks and tool holders used on CNC machining centers, knee mills, lathes with live tooling, and similar machine tool setups. The ER25 standard is widely adopted in both production and job-shop environments for light to medium material removal operations. It is appropriate for use with straight-shank cutting tools and round workpiece stock within its stated capacity range.

Key Features

• ER25 series collet with 0.2756 inch (7.00 mm) maximum bore capacity
• Clamping range from 0.2362 inches (6.0 mm) to 0.2756 inches (7.00 mm)
• Overall length of 1.338 inches for use in standard ER25 chuck pockets
• Compatible with CNC and manual machine tool setups using ER25 holders
• Suitable for milling, drilling, tapping, and reaming applications

Compatibility

Designed as an OEM-style replacement or direct-fit collet for ER25-standard collet chucks and tool holders across CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Always power down and lock out the machine spindle before seating or removing a collet. Insert the collet into the ER25 chuck nut before threading onto the holder, and use a calibrated torque wrench with the appropriate ER25 spanner or hook wrench to achieve proper clamping force per the chuck manufacturer specifications. Inspect the collet bore and seating taper for wear or damage before each use.