Kennametal SPU422 carbide milling insert, Grade 518, from the Carboloy line, is a square SPU geometry insert designed for use with Kennametal SPU-style milling tool bodies. It features a 1/2-inch inscribed circle (12.7 mm) and a 1/32-inch (0.8 mm) corner radius, offering precise seating and predictable chip formation. Sold boxed as an insert pack, SPU422 Grade 518 delivers Kennametal’s wear-resistant performance in routine milling applications requiring reliable edge life and consistent results.
