Sandvik Coromant 5721251 Face Mill Holder CAT50

Product Description

The SANDVIK COROMANT 5721251 is a CAT50 face mill holder designed for secure, high-rigidity mounting of face milling cutters on machining centers with CAT50 spindle interfaces. The holder features a 1.5-inch pilot diameter and a 2.4-inch arbor length, providing stable cutter support across a range of face milling operations. Weighing 10.71 pounds, this is a substantial, production-grade toolholder built for heavy-duty milling environments. It is installed by machinists and CNC setup technicians in job shop, aerospace, die-mold, and general metalworking applications where accurate, repeatable face cutter positioning is required.

This face mill holder is suited for vertical and horizontal machining centers equipped with CAT50 spindle tapers. It accommodates face mills with a 1-1/2-inch mounting hole thread size, making it appropriate for large-diameter face milling cutters commonly used in high-material-removal-rate operations. Typical installation environments include production machining floors and tool rooms where rigid, concentric cutter mounting is critical to surface finish and tool life.

Key Features

• CAT50 taper interface for compatibility with standard CAT50 machining center spindles
• 1.5-inch pilot diameter for precise cutter location and runout control
• 2.4-inch arbor length provides adequate clearance and support for face milling cutters
• 1-1/2-inch mounting hole thread size accommodates large-diameter face mills
• Robust construction at 10.71 pounds, suitable for high-feed and heavy-duty milling conditions

Compatibility

Designed as an OEM-style face mill holder for machining centers with CAT50 spindle interfaces and face milling cutters requiring a 1-1/2-inch mounting hole thread size.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. The machine spindle must be fully powered down and the tool changer disabled before mounting or removing the holder. Use a calibrated torque wrench and the appropriate retention knob for CAT50 toolholders when securing to the spindle. Inspect the taper and holder bore for contamination or damage before assembly to ensure accurate seating and safe operation.