Sandvik Coromant 5739734 Square-shoulder Face Mill

Product Description

The SANDVIK COROMANT 5739734 is an indexable square-shoulder face mill designed for precision milling operations in metal cutting applications. Part of the CoroMill 245 series, this cutter accepts 5 inserts of style R245-12T3.. and features a 45-degree lead angle with a positive rake geometry. The arbor hole diameter is 3/4 inches (19.05 mm), the maximum cutting diameter is 2-1/2 inches (63.50 mm), and the maximum depth of cut is 6.10 mm (0.240 inches). Right-hand cutting direction and a close pitch insert layout make this mill suited for high-productivity square-shoulder operations. The toolholder body is constructed from steel. Licensed machinists and CNC operators typically specify and install this cutter in production and job-shop environments.

The 5739734 is used in face milling and square-shoulder milling operations on machining centers and milling machines. The CoroMill 245 series is engineered for 90-degree shoulder milling where a true square shoulder is required. The close pitch configuration with 5 inserts allows for efficient material removal at the 2-1/2 inch diameter. Overall height is 40.00 mm (1.5748 inches). This cutter suits both production runs and prototype work where dimensional accuracy at the shoulder is critical. The clamp-and-screw insert holding method provides secure insert retention during cutting.

Key Features

• Maximum cutting diameter of 2-1/2 inches (63.50 mm) with a 45-degree lead angle
• Accepts 5 inserts of compatible style R245-12T3.. for close-pitch cutting
• Right-hand cutting direction with positive rake geometry
• Clamp and screw insert holding method for secure retention
• Steel toolholder body for rigidity and durability
• Keyway width of 9.75 mm (0.3839 inches) for positive drive engagement

Compatibility

Compatible with R245-12T3.. insert style. Cutter style is RA245 within the CoroMill 245 series. Consult insert manufacturer documentation to confirm specific insert grades and geometries suitable for the workpiece material and application.

Installation Notes

Installation of indexable face mills should be performed by a qualified machinist or CNC tooling technician. Disconnect and lock out all machine power before mounting or removing the cutter from the spindle or arbor. Verify that the arbor bore, keyway, and retention hardware are clean and undamaged before assembly. Always inspect insert seating pockets and tighten clamping screws to the tool manufacturer's specified procedure before initiating a cut.