Precision-engineered in the USA, this RedLine Tools 4-Flute Variable Index and Helix Corner Radius Square End Mill delivers exceptional performance for professional machining applications. Featuring a 0.31-inch cutting diameter with a 0.03-inch corner radius, this carbide end mill is designed for superior durability and cutting efficiency. The variable helix and variable index design reduces chatter and improves surface finish quality. Coated with premium AlTiSN finish for extended tool life and heat resistance, this REP4068 model excels in challenging materials. The 0.31-inch shank diameter ensures stability during operation, while the round shape optimizes cutting performance. Weighing just 10 grams, this lightweight yet robust tool comes as a single unit in protective packaging. Ideal for precision machining operations requiring excellent corner detail and surface finish.