Accupro 776944 Single Angle Collet Chuck CAT40 Tg PG75

Product Description

The ACCUPRO 776944 is a single angle collet chuck with a CAT40 taper shank, designed for precision CNC milling and machining center applications. It accepts TG and PG75 series collets and delivers a Total Indicator Runout (TIR) of 0.0002 inches, making it suitable for close-tolerance work. The chuck projects 3 inches from the spindle face and is balanced to 20,000 RPM for high-speed operation. Coolant is delivered through the spindle and DIN flange, supporting through-spindle and through-tool coolant strategies. This chuck is installed and used by machinists and CNC setup technicians in production and job-shop environments.

This collet chuck is intended for use in vertical and horizontal machining centers equipped with CAT40 spindle tapers. It accommodates collet capacities from 3/64 inch minimum to 3/4 inch maximum, covering a wide range of cutting tool shank sizes. The drawbar actuator type is standard for CAT40 machining center spindles. Typical applications include end milling, drilling, and reaming operations where high RPM capability and low runout are required. The through-coolant feature supports flood and high-pressure coolant delivery directly to the cutting zone.

Key Features

• CAT40 taper shank for compatibility with standard machining center spindles
• TIR of 0.0002 inches for precise, close-tolerance machining
• Balanced to 20,000 RPM for high-speed cutting applications
• Through-spindle and DIN flange coolant delivery for effective chip and heat management
• Collet capacity range from 3/64 inch to 3/4 inch using TG and PG75 series collets
• 3 inch projection provides clearance for deep-pocket and workholding-constrained setups

Compatibility

Designed for use with TG and PG75 series single angle collets in CAT40-spindle machining centers using a drawbar actuator. Collet capacity ranges from 3/64 inch to 3/4 inch.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. The spindle must be fully stopped and the machine placed in an appropriate safe state before mounting or removing the chuck. Use the correct drawbar torque procedure specified by the machine tool manufacturer when securing the chuck in the spindle. Verify runout with a test indicator after installation before beginning production cuts.