Sandvik Coromant 6971893 Milling Insert Solid Carbide

Product Description

The SANDVIK COROMANT 6971893 is a solid carbide milling insert designed for use in high-performance face and shoulder milling operations. Part of the 490 series, this insert carries the ANSI/ISO designation 490R-140408M-PM 1130 and features an AlTiCrN coating applied via PVD process, which delivers strong oxidation resistance and extended tool life across a broad range of workpiece materials. The square insert geometry includes four cutting edges, a positive rake angle of 23 degrees, a 16-degree relief angle, and a corner radius of 0.0315 inches (1/32 inch). It measures 0.5433 inches in inscribed circle diameter and 0.1535 inches thick. Installation is by screw-holding method into compatible 490-series cutter bodies.

This insert is suited for milling steel, stainless steel, non-ferrous metals, superalloys, titanium, and hard materials, covering material grades P30, M15, and N15. The PM chip breaker geometry supports stable cutting across roughing and semi-finishing passes. Maximum depth of cut reaches 10.00 mm (0.3937 inches). The right-hand, single-sided configuration and corner-rounded cutting edge style make it appropriate for shoulder milling applications in both production shop and job shop environments. Machinists and CNC operators working with 490-series toolholders will find this insert a direct fit for standard face milling and ramping operations.

Key Features

• AlTiCrN coating via PVD process for heat and wear resistance across diverse workpiece materials
• Four cutting edges on a square, single-sided insert body for extended service life per insert
• Positive rake angle (23 degrees) with 16-degree relief reduces cutting forces on the workpiece
• PM chip breaker geometry supports stable chip control in roughing and semi-finishing cuts
• Maximum depth of cut of 10.00 mm (0.3937 inches) for versatile milling passes
• Screw-held mounting in 490-series cutter bodies for secure, repeatable edge indexing

Compatibility

Designed for use with 490-series cutter bodies. ANSI and ISO designations are 490R-140408M-PM 1130. Compatible with workpiece materials coded P, M, N, S, and H per ISO material classification.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torx or hex key as specified by the cutter body manufacturer when seating the clamping screw — do not overtighten, as this can crack the carbide substrate. Inspect the insert pocket and seating surface for chips or debris before installing a new insert.