Sandvik Coromant 5743879 Milling Insert R245 Tialn

Product Description

The SANDVIK COROMANT 5743879 is a solid carbide milling insert designed for face and shoulder milling operations in the R245 cutter series. Coated with TiAlN via a PVD process, it carries a manufacturer grade of 1020 and an ISO/ANSI code of R245-12 T3 E-KL 1020. The square insert geometry features four cutting edges, a positive 15-degree rake angle, and a 1.50 mm corner radius, making it well suited for controlled, efficient material removal in cast iron applications. This is a single-sided insert held in place by a screw-type clamping method.

This insert is intended for use in cast iron machining, corresponding to ISO material group K and material grade K05. The R245 series designation targets 90-degree shoulder milling and face milling setups in production environments. Typical installers are CNC machinists and toolroom technicians working on horizontal or vertical milling centers. The KL chip breaker geometry supports positive cutting action and chip control in cast iron workpieces. The insert size code is 12T3, with a maximum depth of cut of 6.50 mm (0.2559 inches).

Key Features

• TiAlN coating applied via PVD process for wear resistance in cast iron cutting
• Four cutting edges on a single-sided square insert body
• Positive 15-degree rake angle reduces cutting forces
• KL chip breaker for controlled chip formation in cast iron
• Screw-mount insert holding method for secure, repeatable seating
• 90-degree included angle geometry for shoulder and face milling compatibility

Compatibility

Designed for use with Sandvik Coromant R245 series milling cutters. ANSI and ISO designation R245-12 T3 E-KL 1020 confirms fitment within that cutter family. Cutter series compatibility is listed as R245.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the spindle fully stopped and machine power locked out before handling inserts. Seat the insert fully against the pocket locating surfaces before torquing the clamping screw. Inspect the insert pocket for wear or debris before installing a replacement insert. Follow the milling cutter manufacturer's recommended torque procedure for the clamping screw to avoid insert movement or pocket damage during cutting.