This precision-engineered 4-flute carbide square end mill from RedLine Tools delivers exceptional performance for demanding machining applications. Featuring a 1-inch cutting diameter with a 0.03-inch corner radius, this American-made tool combines variable helix and variable index geometry to reduce chatter and improve surface finish. The advanced AlTiSN coating provides superior heat resistance and extended tool life, making it ideal for machining a wide range of materials. With a Weldon shank design ensuring secure tool holding and a corner radius end cut type for versatile milling operations, this end mill offers the reliability and precision that professional machinists demand. The carbide construction delivers outstanding wear resistance and maintains sharp cutting edges longer than conventional tooling. Whether you're performing slotting, profiling, or general milling operations, this 4-flute end mill provides the cutting performance needed for high-quality results in production and job shop environments.