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 0.09 inches adds strength to the cutting edge while enabling 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. The round shank design ensures secure tool holding, while the 3-inch overall length provides versatility for various machining depths. Weighing just 10 grams, this lightweight yet durable tool is ideal for milling operations in steel, stainless steel, and other tough materials. Model REP4140 represents professional-grade performance for machinists who demand precision and reliability in their cutting tools.