Accupro 777700 Milling Chuck Collet 0.25 in Id 0.75 in Od

Product Description

The ACCUPRO 777700 is a milling chuck collet designed to grip cutting tools securely within a milling chuck toolholder. It measures 0.25 inches inside diameter, 0.75 inches outside diameter, and 2.1 inches overall length. The collet transfers rotational force from the chuck body to the cutting tool, maintaining concentricity and grip under the cutting loads typical in milling operations. Machinists and toolroom technicians install this collet in CNC and manual milling setups where precise tool holding is required. At 0.1 pounds, it is a compact, lightweight component suited for standard tool change procedures.

This collet is used in milling chuck toolholders that accept a 0.75-inch outside diameter collet with a 0.25-inch bore. It fits both CNC machining centers and manual vertical mills where the corresponding chuck body is installed. The 0.25-inch bore accommodates standard quarter-inch shank cutting tools including end mills, drills, and similar tooling commonly used in production and toolroom environments.

Key Features

• 0.25 inch inside diameter bore accepts standard quarter-inch shank cutting tools
• 0.75 inch outside diameter for use in compatible milling chuck bodies
• 2.1 inch overall length provides adequate tool grip depth for standard milling applications
• Lightweight at 0.1 pounds for easy handling during tool changes
• Compact collet format maintains concentricity between chuck and cutting tool

Compatibility

Designed as an OEM-style replacement or standard-fit collet for milling chuck toolholders accepting a 0.75-inch outside diameter collet with a 0.25-inch inside diameter bore.

Installation Notes

Installation is performed by machinists or toolroom technicians during tool setup on milling equipment. Always power down and lock out the spindle drive before installing or removing collets. Ensure the collet bore and chuck body taper are clean and free of chips or debris before seating the collet. Do not exceed the chuck manufacturer's recommended torque when tightening the retention nut.