The RedLine Tools 1/2 4 Flute Carbide Corner Radius End Mill is a precision cutting tool designed for demanding machining applications. This American-made end mill features a 0.5-inch cutting diameter with a matching 0.5-inch shank diameter, providing excellent stability during operation. The 4-flute design with variable helix and variable index geometry helps reduce chatter and harmonics, delivering superior surface finishes and extended tool life. The corner radius of 0.06 inches adds strength to the cutting edge while allowing for smooth transitions in your workpiece. Constructed from high-quality carbide material and finished with AlTiSN coating, this end mill offers exceptional wear resistance and heat dissipation for increased productivity. Measuring 3 inches in length and weighing just 10 grams, this versatile cutting tool is ideal for a wide range of materials and applications. Model number REP4139 represents professional-grade performance for machinists who demand reliability and precision in their tooling.