The RedLine Tools 1/2 4 Flute Carbide Corner Radius End Mill is a precision cutting tool designed for demanding machining applications. Made in the USA, this end mill features a 0.5-inch cutting diameter with a matching 0.5-inch shank diameter for secure tool holding. The 4-flute design with variable helix and variable index geometry helps reduce chatter and improve surface finish during cutting operations. Constructed from durable carbide material with an AlTiSN finish type, this tool delivers extended tool life and enhanced performance. The corner radius design with a 0.02-inch radius provides strength at the cutting edge while allowing for smoother transitions in your workpiece. Measuring 3 inches in length and 1.25 inches in width, this round-shaped end mill weighs just 10 grams, making it easy to handle and install. Model number REP4145 comes as a single unit, ready to tackle your milling, profiling, and contouring tasks with precision and reliability.