Parlec C50-20SM6 Shell Mill Holder CAT50 2 Inch Pilot

Product Description

The PARLEC C50-20SM6 is a CAT50 taper shank shell mill holder designed for use on CNC machining centers requiring secure, high-precision face milling setups. It features a 2-inch pilot diameter and a 6-inch projection from flange to nose end, placing the cutter well clear of the spindle for deep-reach applications. The nose diameter measures 4.88 inches, and the holder is balanced to 30,000 RPM, making it suitable for high-speed machining environments. A 1-14 lock screw thread retains the shell mill. Weighing 20 pounds, this is a heavy-duty tooling component intended for professional machine shop use.

This holder is used in horizontal and vertical CNC machining centers equipped with CAT50 spindle interfaces. It accommodates shell mill cutting diameters ranging from 5-1/2 to 6 inches, making it appropriate for wide-face milling passes on structural components, fixtures, and large workpieces. The 6-inch projection allows clearance for setups where standard-length holders would create interference. Through-coolant is not supported by this holder. It is a direct-mount tooling solution installed by CNC machinists and tooling setup technicians.

Key Features

• CAT50 taper shank for compatibility with CAT50 spindle interfaces
• 2-inch pilot diameter with 4.88-inch nose diameter for large-diameter shell mills
• 6-inch flange-to-nose projection for extended-reach setups
• Balanced to 30,000 RPM for high-speed machining applications
• TIR of 0.0002 inches for precise runout control
• Lock screw thread size 1-14 using lock screw 20LS

Compatibility

Compatible with shell mill cutting diameters in the 5-1/2 to 6 inch range. Designed for use in CAT50 spindle machining centers. Does not support through-coolant configurations.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Ensure the machining center spindle is powered down and locked out before mounting or removing the holder. Clean the CAT50 taper interface on both the holder and the spindle to remove chips and debris before seating. Verify torque on the retention knob and lock screw per the machine tool manufacturer specifications before running.