Parlec EXT125 DA180 Double Angle Collet Chuck Straight Shank

Product Description

The PARLEC EXT125 is a straight-shank collet chuck designed for precision CNC machining applications using the DA180 double angle collet system. It accepts collets ranging from 0.0313 inches to 0.75 inches in capacity and delivers a total indicator runout (TIR) of 0.0004 inches, making it well suited for applications that demand tight tolerances. The chuck features through-spindle coolant delivery, a 1.813-inch projection, and an overall length of 7.313 inches. It is installed and maintained by machinists and CNC tooling technicians working in production or job-shop environments.

This chuck is intended for use on CNC machining centers and milling machines that accommodate a 1.25-inch straight shank interface. The DA180 double angle collet system provides a wide gripping range in a single chuck body, reducing the need for frequent toolholder changes across varied tool diameters. Through-spindle coolant compatibility makes it appropriate for high-speed cutting operations where chip evacuation and tool-tip cooling are required. It suits both light finishing passes and moderate material removal on ferrous and non-ferrous workpieces.

Key Features

• DA180 double angle collet system accepts collets from 0.0313 inches to 0.75 inches
• TIR of 0.0004 inches for precise, repeatable tool positioning
• Through-spindle coolant delivery for improved chip control and tool life
• 1.25-inch straight shank diameter with a 5.5-inch shank length
• 1.813-inch projection and 7.313-inch overall length for reach flexibility
• 1.44-inch collet nut and hex diameter for standard spanner wrench engagement

Compatibility

Designed for use with DA180 series double angle collets on CNC machining centers and milling machines equipped with a 1.25-inch straight shank toolholder interface and through-spindle coolant capability.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool changer is disabled before mounting or removing the chuck. Use the appropriate spanner wrench on the collet nut hex to achieve proper collet seating and clamping force. Verify coolant port alignment with the spindle coolant supply before engaging through-coolant flow.