Kennametal 3641492 Shell Mill Holder CAT40 Taper Shank

Product Description

The KENNAMETAL 3641492 is a CAT40 taper shank shell mill holder designed for use in CNC machining centers. It accepts shell mills and face mills through a standard pilot and nose interface, securing the cutting tool for face milling, shoulder milling, and similar operations. The holder features through-spindle and DIN flange coolant delivery, directing coolant to the cutting zone for improved chip evacuation and tool life. With a nose diameter of 1.75 inches and an overall length of 4.755 inches, this holder is sized for mid-range shell mill bodies. It is balanced to 12000 RPM, making it suitable for modern high-speed spindle applications. Installation and removal are handled by licensed machinists or CNC setup technicians.

This shell mill holder is intended for use in machining centers equipped with CAT40 spindle tapers. It is well suited for production shops running face milling, profiling, or surfacing operations on ferrous and non-ferrous materials. The 3/4 inch pilot diameter and 1.75 inch nose diameter accommodate commonly sized shell mill bodies. The through-coolant capability supports both flood and internal coolant delivery methods when the machine spindle and tooling are configured accordingly.

Key Features

• CAT40 taper shank for use in standard CAT40 spindle machines
• 1.75 inch nose diameter for mid-range shell mill body sizes
• Through-spindle and DIN flange coolant delivery for active cooling at the cut
• Balanced to 12000 RPM for compatibility with high-speed machining centers
• 3/8-24 lock screw thread for secure shell mill retention
• 3/4 inch pilot diameter for accurate tool centralization

Compatibility

Designed for use in machining centers with a CAT40 spindle interface. Compatible with shell mill bodies requiring a 1.75 inch nose diameter and 3/4 inch pilot diameter.

Installation Notes

Installation and removal should be performed by a qualified machinist or CNC toolroom technician. Always power down and lock out the machine spindle before changing toolholders. Use a proper CAT40 toolholder tightening fixture and a calibrated torque wrench when securing the drawbar or retention knob. Verify that the coolant ports are clear and undamaged before installing into the spindle.