Sandvik Coromant 5743880 Milling Insert R245 Square

Product Description

The SANDVIK COROMANT 5743880 is a solid carbide milling insert designed for use in positive-rake face milling and shoulder milling applications. Manufactured to ANSI and ISO standards under catalog number R245-12 T3 E-ML 2030, this insert carries a TiAlN and TiN physical vapor deposition (PVD) coating in manufacturer grade 2030. It features a square shape with four cutting edges, a right-hand orientation, and a corner radius of 0.0591 inches (1.50 mm). The ML chip breaker geometry supports controlled chip evacuation across a range of cutting conditions. Licensed HVAC, machining, and metalworking professionals specify this insert for production milling of steel, stainless steel, superalloys, and titanium.

This insert is sized to the R245 cutter series with an insert size code of 12T3. It fits right-hand toolholders that accept a screw-held, single-sided square insert. With a maximum depth of cut of 0.2559 inches (6.50 mm) and an inscribed circle of 0.5276 inches (13.40 mm), it is suited to both roughing and semi-finishing passes on steel (P30), stainless steel (M25), and superalloys and titanium (S20) workpiece materials. Typical installations occur in CNC machining centers performing face milling, square shoulder milling, and ramping operations.

Key Features

• Solid carbide substrate with TiAlN and TiN PVD coating in manufacturer grade 2030
• Square insert shape with four cutting edges and right-hand orientation
• Corner radius of 0.0591 inches (1.50 mm) with corner-rounded cutting edge style
• ML chip breaker geometry for steel, stainless steel, superalloys, and titanium
• Positive rake angle of 20 degrees for reduced cutting forces
• Screw-held, single-sided insert compatible with R245 series cutter bodies

Compatibility

Designed for use with R245 series cutter bodies that accept screw-held square inserts with insert size code 12T3, per ANSI and ISO catalog designation R245-12 T3 E-ML 2030.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the correct Torx or hex key as specified by the toolholder manufacturer to torque the clamping screw — do not overtighten or cross-thread the screw. Inspect the insert pocket and clamping seat for chips or debris before seating a new insert to ensure proper seating and runout control.