Iscar 5507873 Turning Insert CNMG431PP IC807 Carbide

Product Description

The ISCAR 5507873 is a solid carbide turning insert in the CNMG431PP geometry, part of the Isoturn series. It features a PVD-applied TiAlN coating over a carbide substrate, targeting high wear-resistance across steel, stainless steel, and cast iron workpiece materials. The insert carries an 80-degree diamond (rhombic) shape with a negative side clearance and a 0.0157-inch corner radius. At 12.9 mm in length with a 0.5-inch inscribed circle and 0.1874-inch thickness, this insert is sized for general turning operations ranging from roughing to medium machining in CNC and manual turning applications.

This insert is designed for use in external and internal turning operations on steel (ISO P), stainless steel (ISO M), cast iron (ISO K), and superalloy (ISO S) workpiece materials. The PP chip breaker geometry supports roughing and medium machining passes, making it well suited for production turning where consistent chip control and tool life are priorities. It is typically installed in indexable toolholders by machinists and CNC operators in job shops, OEM machining centers, and maintenance-repair machine shops.

Key Features

• PVD TiAlN coating provides high wear-resistance with retained toughness across P, M, K, and S material codes
• 80-degree diamond insert shape (CNMG) allows two usable cutting edges per insert
• PP chip breaker geometry engineered for roughing and medium machining operations
• Negative side clearance with positive rake for stable, aggressive cutting action
• IC807 manufacturer grade suitable for steel, stainless steel, cast iron, and superalloys
• Compliant with ISO 13399 tooling data standards

Compatibility

Designed as an OEM-style indexable turning insert for use in CNMG-style toolholders accepting a 431 (ISO 120404) insert size with clamp or pin holding methods, as specified by the ANSI and ISO insert codes.

Installation Notes

Installation is performed by machinists or CNC setup technicians. The machine spindle must be fully stopped and the toolholder secured in the turret before indexing or replacing the insert. Use the appropriate torque wrench and manufacturer-specified clamp hardware for the toolholder to seat the insert correctly. Do not exceed the maximum depth of cut of 0.1575 inches per the insert geometry limits.