Accupro 775436 CAT40 Shell Mill Holder 1-1/2 Inch Pilot

Product Description

The ACCUPRO 775436 is a CAT40 taper shank shell mill holder designed for use on machining centers equipped with CAT40 spindle interfaces. It accepts shell mills with a 1-1/2 inch pilot diameter and accommodates cutting diameter ranges from 4 to 5 inches. The holder features both through-spindle and DIN flange coolant delivery, allowing cutting fluid to reach the tool tip directly for improved chip evacuation and tool life. A 3/4-16 lock screw thread secures the shell mill firmly during operation. With a TIR of 0.0002 inches, this holder maintains tight runout tolerances suited for precision face milling and surfacing applications. Licensed machinists and CNC setup technicians are the primary installers.

This shell mill holder is used on vertical and horizontal machining centers in job shop, production, and toolroom environments. It is suited for face milling, shoulder milling, and surface finishing operations where a CAT40 spindle taper is standard. The 2.0 inch projection from flange to nose end provides clearance for most standard shell mill bodies. Dual coolant delivery via through-spindle and DIN flange ports makes it compatible with machines plumbed for either coolant delivery method.

Key Features

• CAT40 taper shank for direct mounting to CAT40 machining center spindles
• 1-1/2 inch pilot diameter supports shell mills in the 4 to 5 inch cutting diameter range
• Through-spindle and DIN flange coolant delivery for versatile flood and through-tool cooling
• TIR of 0.0002 inches for consistent runout control during precision milling
• 3/4-16 lock screw thread for secure shell mill retention
• 2.0 inch flange-to-nose projection for adequate shell mill clearance

Compatibility

Designed for use on machining centers with a CAT40 spindle interface. Accepts shell mills with a 1-1/2 inch pilot bore and cutting diameters from 4 to 5 inches.

Installation Notes

Installation is performed by a qualified CNC machinist or tooling setup technician. The spindle must be fully stopped and the machine placed in an appropriate lockout state before mounting or removing the holder. Use a calibrated torque wrench on the lock screw and a proper CAT40 pull stud matched to the machine drawbar specification. Verify runout with a dial indicator after installation before beginning any cutting operation.