Parlec C50-15SM2 Shell Mill Holder CAT50 1.5 in Pilot

Product Description

The PARLEC C50-15SM2 is a CAT50 taper shank shell mill holder designed for use on machining centers requiring a secure, accurate mount for shell mill cutters. It features a 1.5-inch pilot diameter and a 3.75-inch nose diameter, accommodating shell mills with a cutting diameter range of 4 to 5 inches. The holder delivers a total indicator runout (TIR) of 0.0002 inches, supporting tight tolerancing in production milling operations. Balanced to 30,000 RPM, it is suited for both standard and high-speed spindle applications. Installation is performed by machinists or tooling technicians on CNC vertical or horizontal machining centers equipped with CAT50 spindle interfaces.

This shell mill holder is intended for production and job-shop machining environments where shell mills in the 4 to 5 inch cutting diameter range are run on CAT50 spindles. Typical applications include face milling and shoulder milling on ferrous and non-ferrous workpieces. The 2.4-inch projection from flange to nose end provides clearance for a range of fixturing setups. The lock screw thread size of 3/4-16 is compatible with the included 15LS lock screw, ensuring the shell mill is held firmly against the pilot face during cutting.

Key Features

• CAT50 taper shank for direct mount to standard CAT50 spindles
• 1.5-inch pilot diameter accepts shell mills in the 4 to 5 inch cutting diameter range
• TIR of 0.0002 inches for accurate, repeatable cutter positioning
• Balanced to 30,000 RPM for compatibility with high-speed machining applications
• 3/4-16 lock screw thread with 15LS lock screw included
• 2.4-inch flange-to-nose projection for setup flexibility

Compatibility

Designed for use with CAT50 spindle machining centers. Compatible with shell mills having a 1.5-inch pilot bore and a cutting diameter of 4 to 5 inches. Lock screw size is 3/4-16, referencing the 15LS lock screw designation.

Installation Notes

Installation and tooling changes should be performed by qualified machinists or tooling technicians. Always de-energize and lock out the machine spindle before mounting or removing the holder. Clean the CAT50 taper and spindle bore thoroughly before seating the holder to ensure full taper contact and accurate runout. Torque the retention knob and lock screw per the machine tool builder and cutter manufacturer guidelines.