Kennametal 3640201 Shell Mill Holder CAT50 0.75 in Pilot

Product Description

The KENNAMETAL 3640201 is a CAT50 taper shank shell mill holder designed for secure milling cutter mounting on machining centers equipped with CAT50 spindles. The holder features a 0.75 inch pilot diameter and a 1.75 inch nose diameter, with a projection from flange to nose end of 7.0 inches. Through-coolant delivery is supported via both through-spindle and DIN flange porting, making this holder suitable for high-production environments where coolant-through tooling is required. The lock screw thread size is 3/8-24. Machining centers operators and CNC setup technicians are the primary users of this toolholder.

This shell mill holder is suited for horizontal and vertical machining centers running face mills, shell mills, and indexable milling cutters that require a CAT50 interface. It is appropriate for production milling operations in metalworking shops, job shops, and manufacturing facilities where rigidity and coolant-through capability are priorities. The DIN flange coolant port provides an additional option for coolant delivery when through-spindle coolant is not available on the machine.

Key Features

• CAT50 taper shank for direct spindle mounting on CAT50 machining centers
• 0.75 inch pilot diameter for precise cutter location and concentricity
• 1.75 inch nose diameter accommodates standard shell mill bores
• 7.0 inch projection from flange to nose end for extended reach applications
• Through-coolant compatible via through-spindle and DIN flange porting
• 3/8-24 lock screw thread for secure cutter retention

Compatibility

Designed as an OEM-style shell mill holder for machining centers with CAT50 spindle interfaces accepting standard shell mill and face mill cutter bores.

Installation Notes

Installation and removal should be performed by a qualified CNC machinist or 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 retention knob for the machine spindle when securing the holder; refer to the machine tool builder specifications for drawbar force requirements. Inspect the taper shank and spindle bore for contamination or damage before assembly.