Kennametal 5665817 Milling Insert SP6519 Solid Carbide Apht

Product Description

The KENNAMETAL 5665817 is a solid carbide milling insert in the APHT series, grade SP6519, designed for high-performance milling operations in metalworking applications. The insert features a TiAlN coating applied via a PVD process, which provides excellent wear resistance and thermal stability during interrupted cuts and high-speed milling. With an inscribed circle diameter of 0.5 inches and insert size code 160416, this APHT-style insert is sized for precision indexable tooling systems used by machinists and tooling technicians in production and job-shop environments.

This insert is suited for milling ferrous and non-ferrous materials where a hard, oxidation-resistant coating is required. The APHT insert style is commonly used in face milling and shoulder milling applications on CNC machining centers. The SP6519 grade and TiAlN coating make it a practical choice for dry or semi-dry cutting conditions at elevated cutting speeds. Tooling technicians and machinists working with indexable milling systems will find this insert appropriate for medium to high cutting-speed applications.

Key Features

• Solid carbide substrate for rigidity and wear resistance
• TiAlN coating via PVD process for thermal stability and extended tool life
• APHT insert style, size code 160416
• Inscribed circle diameter of 0.5 inches for precise indexable fit
• Manufacturer grade SP6519 optimized for milling applications

Compatibility

Designed for use in APHT-series indexable milling toolholders and cutter bodies that accept insert size 16 with a 0.5-inch inscribed circle diameter.

Installation Notes

Installation of indexable milling inserts should be performed by a qualified machinist or tooling technician. Ensure the cutter body pocket and clamping screw are clean and free of chips before seating the insert. Use the manufacturer-recommended torque driver for the clamping screw to avoid insert rocking or premature failure. Always power down and lock out the machine spindle before changing inserts.