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 0.25-inch cutting diameter with a matching 0.25-inch shank, this carbide end mill incorporates advanced variable helix and variable index design to reduce chatter and improve surface finish. The 0.02-inch corner radius provides strength at cutting edges while maintaining accuracy. Finished with premium AlTiSN coating for enhanced durability and heat resistance, this versatile tool measures 2 inches in length and weighs just 10 grams. The REP4037 model is specifically designed for precision milling operations requiring superior tool life and consistent results. Each unit comes individually packaged, ready for immediate use in your machining center.