Sandvik Coromant 5739670 Square-shoulder Face Mill 2.5in

Product Description

The SANDVIK COROMANT 5739670 is an indexable square-shoulder face mill designed for precision milling operations in metal cutting applications. Built on the CoroMill 390 platform, this cutter accepts six R390-11.. style inserts and delivers a 90-degree lead angle with a positive rake geometry. The maximum cutting diameter is 2.5 inches (63.50 mm), the arbor hole diameter is 0.75 inches (19.05 mm), and the maximum depth of cut is 10.00 mm (0.3937 inches). Overall height is 1.575 inches (40.01 mm). Inserts are secured via clamp and screw, and the cutter operates in a right-hand cutting direction. The steel toolholder body is built for close-pitch insert spacing.

This face mill is suited for square-shoulder milling on vertical and horizontal machining centers in both production and job-shop environments. The close-pitch, six-insert configuration supports higher feed rates and stable cutting conditions on ferrous and non-ferrous materials. It is used by machinists and CNC operators running the CoroMill 390 series tooling system. No coolant-through capability is available on this body, so external coolant application is standard practice in most setups.

Key Features

• CoroMill 390 series platform with 90-degree lead angle for true square-shoulder profiling
• Six-insert close-pitch configuration for higher productivity and stable cutting
• R390-11.. compatible inserts secured by clamp and screw for reliable edge positioning
• Positive rake geometry reduces cutting forces and heat generation at the insert
• Right-hand cutting direction; steel toolholder body for rigidity
• Keyway width of 0.3839 inches (9.75 mm) for accurate arbor drive engagement

Compatibility

Compatible with R390-11.. series inserts. Designed for use with CoroMill 390 series tooling systems using a 0.75-inch arbor mounting interface.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. The machine spindle must be powered down and locked out before mounting or removing the cutter body. Verify that the arbor, drawbar, and keyway are clean and undamaged before assembly. Torque insert screws and cutter retention hardware according to the toolholder manufacturer specifications found in the CoroMill 390 documentation.