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 Weldon shank for secure tool holding. The 4-flute design with variable helix and variable index geometry helps reduce chatter and harmonics during cutting operations, delivering superior surface finishes and extended tool life. The corner radius design with a 0.02-inch radius provides added strength to the cutting edges while allowing for smoother transitions in your workpiece. Constructed from high-quality carbide material and finished with an advanced AlTiSN coating, this end mill offers excellent wear resistance and heat dissipation for increased productivity. The round shank design ensures reliable clamping in standard tool holders. Measuring 4 inches in length with a 1.75-inch width, this versatile cutting tool weighs just 10 grams, making it ideal for a wide range of milling operations in various materials. Model REP4168 represents professional-grade tooling for machinists who demand precision and performance.