Iscar 4504889 Milling Chuck Collet Through Coolant

Product Description

The ISCAR 4504889 is a milling chuck collet designed to secure cutting tools in milling chuck toolholders on CNC machining centers and milling machines. It features a 0.6299-inch inside diameter, a 1.2598-inch outside diameter, and an overall length of 2.8346 inches. A through-coolant design channels coolant directly to the cutting zone, supporting tool life and chip evacuation during high-speed or deep-pocket milling operations. The collet weighs 0.623 pounds. This component is installed by machinists and tooling technicians as part of a precision toolholding setup.

This collet is suited for use in milling chuck toolholding systems where precise tool retention and coolant delivery are required. It is appropriate for production and job-shop environments running ferrous and non-ferrous materials where consistent runout and clamping force are critical to part quality and cycle time. The through-coolant feature makes it well-suited for deep-pocket milling, drilling, and high-feed applications where flood coolant alone is insufficient to reach the cutting edge.

Key Features

• 0.6299-inch inside diameter for precise tool shank engagement
• 1.2598-inch outside diameter for milling chuck compatibility
• 2.8346-inch overall length for standard reach applications
• Through-coolant design channels fluid directly to the cutting zone
• Compact 0.623-pound weight minimizes added mass in the toolholding assembly

Compatibility

Designed as an OEM-style replacement or standard-service collet for milling chuck toolholding systems accepting a 0.6299-inch ID collet with a 1.2598-inch OD profile.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician following the machine tool manufacturer's procedures for collet seating and torque. Power down and lock out the machine spindle before changing toolholding components. Inspect the collet bore and mating chuck surfaces for debris or damage before assembly. Do not exceed the maximum RPM rating of the toolholding system when the collet is in use.