Value Collection SC80040975 ER25 Collet Chuck Straight Shank

Product Description

The VALUE COLLECTION SC80040975 is an ER25 collet chuck with a straight shank, designed for use in CNC machining centers, milling machines, and drill presses. It accepts ER25 collets for secure, repeatable tool holding with a total indicator runout (TIR) of 0.0004 inches, making it suitable for precision cutting and boring operations. The chuck features a 1 inch projection and an overall length of 6.1 inches, with a 1-1/4 inch shank diameter. Machinists and tooling technicians rely on this chuck for maintaining tight tolerances across production and job-shop environments.

This collet chuck is intended for use in machine tool spindles that accept straight-shank toolholders. It is commonly installed in vertical and horizontal machining centers, knee mills, and similar equipment where ER25 collet tooling is the standard. The 1-1/4 inch straight shank fits toolholder blocks and spindle bores sized accordingly. It is a general-purpose workholding solution for drilling, reaming, tapping, and end milling operations requiring consistent runout control.

Key Features

• ER25 collet system for broad compatibility with standard ER25 collets
• 0.0004 inch TIR for precision tool holding and tight-tolerance machining
• 1 inch projection for close-clearance setups
• 1-1/4 inch straight shank diameter for secure spindle mounting
• 6.1 inch overall length suits a range of machining center configurations

Compatibility

Designed as an OEM-style replacement and standard fitment for machine tool spindles accepting a 1-1/4 inch straight shank and ER25 collet toolholders.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before mounting or removing the chuck. Ensure the shank bore and collet nut seating surfaces are clean and free of burrs before assembly. Torque the collet nut using the appropriate ER25 spanners per the machine tool manufacturer guidance.