Parlec C50F-75SM1 Shell Mill Holder CAT50 0.75 Inch Pilot

Product Description

The PARLEC C50F-75SM1 is a CAT50 dual contact taper shank shell mill holder designed for high-rigidity milling applications on machining centers equipped with dual contact spindles. It features a 0.75 inch pilot diameter and a 1.75 inch nose diameter, with a flange-to-nose projection of 1.5 inches. Through-spindle coolant delivery is supported, requiring Parlec adapter 028-192C for coolant-through operation. Balanced to 8,000 RPM, this holder is suited for face milling, shoulder milling, and other shell mill operations where runout control and coolant delivery are critical. Licensed machinists and CNC setup technicians are the primary installers.

This shell mill holder is used in CNC vertical and horizontal machining centers with CAT50 dual contact spindle interfaces. The dual contact design engages both the taper and the spindle face simultaneously, increasing rigidity and reducing runout compared to standard single-contact CAT50 tooling. Typical applications include high-feed face milling, heavy-stock removal, and production milling on steel, cast iron, and aluminum workpieces where coolant delivery to the cutting zone is required for tool life and chip evacuation.

Key Features

• CAT50 dual contact taper shank for enhanced spindle rigidity and face contact
• 0.75 inch pilot diameter with 1.75 inch nose diameter to accommodate standard shell mills
• Through-spindle coolant delivery supported (requires Parlec adapter 028-192C)
• Balanced to 8,000 RPM for stable high-speed milling operation
• Total indicated runout (TIR) of 0.005 mm for precise cutter positioning
• 1.5 inch flange-to-nose projection for compact reach and reduced overhang

Compatibility

Designed for use with CAT50 dual contact spindle machining centers. Through-spindle coolant operation requires Parlec adapter 028-192C. Compatible with shell mills accepting a 0.75 inch pilot diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician. Power down and lock out the machining center spindle before mounting or removing the holder. Use a calibrated torque wrench and the correct pull stud specification for the target machine spindle when securing the retention knob. Verify runout at the pilot with a dial indicator after seating to confirm proper contact before beginning a cut.