Seco 03197131 Shell Mill Holder CAT40 1 Inch Pilot

Product Description

The SECO 03197131 is a CAT40 taper shank shell mill holder designed to mount face mills and shell mills in vertical and horizontal machining centers. The holder features a 1-inch pilot diameter and a 2.25-inch nose diameter, providing a rigid, concentric interface between the spindle and cutter. Overall length is 5.369 inches, with a 2-inch projection from flange to nose end. Through-coolant capability delivers cutting fluid directly to the tool-workpiece interface, supporting higher feed rates and extended tool life. Machinists and CNC setup technicians working in production and job-shop environments install this holder as part of a standard CAT40 tooling lineup.

This shell mill holder is suited for use in CNC machining centers equipped with CAT40 spindle interfaces, covering a wide range of milling operations including face milling, shoulder milling, and surface finishing passes. The 1-inch pilot and 2.25-inch nose diameter accommodate standard shell mill bores common in production tooling. Through-coolant support makes it appropriate for ferrous and non-ferrous materials where coolant delivery to the cut zone is required for chip evacuation and thermal control.

Key Features

• CAT40 taper shank for direct spindle mounting in CAT40 machining centers
• 1-inch pilot diameter for accurate shell mill registration and concentricity
• 2.25-inch nose diameter supports standard shell mill bore sizing
• Through-coolant capable for improved chip evacuation and tool life
• 2-inch flange-to-nose projection suits typical face milling clearance requirements
• 5.369-inch overall length provides a compact, low-overhang tooling assembly

Compatibility

Designed as an OEM-style shell mill holder for machining centers with a CAT40 spindle interface accepting standard shell mills with a 1-inch pilot bore.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the spindle powered down and locked out per facility lockout/tagout procedures. Use a calibrated torque wrench and the appropriate retention knob for the CAT40 taper to achieve proper drawbar engagement. Inspect the taper shank and spindle bore for nicks, chips, or contamination before seating the holder. Verify through-coolant port alignment with the spindle coolant supply before initiating a cut.