Accupro 777774 Milling Chuck Collet 0.5 in Id 1.25 in Od

Product Description

The ACCUPRO 777774 is a milling chuck collet designed for use in CNC and manual milling operations. It features a 0.5 inch inside diameter (ID) and a 1.25 inch outside diameter (OD), with an overall length (OAL) of 2.88 inches. The collet provides a precision bore interface between the milling chuck body and the cutting tool shank, transmitting torque while maintaining concentricity during material removal. Machinists and tool room technicians install this collet when setting up end mills, drills, or other 0.5 inch shank tooling in a compatible milling chuck system. The unit weighs 0.8 pounds.

This collet is suited for use in machine shops, maintenance facilities, and production environments where milling chuck toolholding systems are employed. It fits applications requiring a 0.5 inch bore collet with a 1.25 inch OD profile, commonly encountered in vertical and horizontal milling machine setups. The compact OAL of 2.88 inches makes it appropriate for close-tolerance work where minimal toolholder overhang is required. Installation is typically performed by a machinist or toolroom technician during tool changeouts or machine setup.

Key Features

• 0.5 inch inside diameter for 0.5 inch shank cutting tools
• 1.25 inch outside diameter for milling chuck body fitment
• 2.88 inch overall length for controlled toolholder overhang
• Lightweight construction at 0.8 pounds for easy handling during tool changes
• Single-piece collet design for direct chuck-to-tool interface

Compatibility

Designed as a replacement or spare milling chuck collet for milling chuck toolholding systems that accept a 1.25 inch OD collet with a 0.5 inch bore.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before inserting or removing collets. Ensure the collet bore, chuck body, and tool shank are clean and free of chips or burrs before assembly. Do not exceed the chuck manufacturer's rated clamping torque specification for the collet size.