Sandvik Coromant 5742556 R210 Square Milling Insert 4220

Product Description

The SANDVIK COROMANT 5742556 is a solid carbide milling insert designed for use in R210 series face and square shoulder milling cutters. It carries manufacturer grade 4220 and features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN for extended tool life in demanding cuts. The insert has a square shape with a positive rake geometry, a corner radius of 0.0394 inches (1.00 mm), and delivers four usable cutting edges per insert. Thickness measures 0.1875 inches (4.76 mm) and the inscribed circle diameter is 0.5709 inches (14.50 mm). It is held in the cutter body by a screw and is right-hand oriented with a PM chip breaker configuration.

This insert is suited for milling operations on steel, cast iron, and hard materials, corresponding to ISO material groups P, K, and H. Material grades P20 and H25 apply. It is used in production and job-shop environments where consistent chip control and wear resistance are required across a range of depths of cut up to 0.0787 inches (2.00 mm). The ANSI and ISO designation for this insert is R210-14 05 12M-PM 4220. Installation is performed by CNC machinists and toolroom technicians setting up R210-compatible milling cutter bodies.

Key Features

• Solid carbide substrate with CVD multilayer TiCN, Al2O3, and TiN coating for heat and wear resistance
• Four cutting edges per insert with positive rake angle for efficient chip evacuation
• Corner radius of 0.0394 inches (1.00 mm) for controlled corner engagement
• PM chip breaker geometry suited for steel and cast iron applications
• Screw-lock insert holding method for secure seating in the cutter body
• Compliant with both ANSI and ISO standards; catalog designation R210-14 05 12M-PM 4220

Compatibility

Designed for use with R210 series milling cutter bodies. Insert size code is 140512 and the catalog number R210-14 05 12M-PM 4220 should be used to confirm fitment with the appropriate cutter body.

Installation Notes

Insert replacement should be performed with the machine powered down and the spindle locked. Use the correct Torx or hex key as specified by the cutter body manufacturer to seat and secure the screw-lock fastener. Inspect the cutter pocket and seating surface for chips or debris before installing a new insert. Index or replace all inserts in a cutter body at the same time to maintain balanced cutting forces.