This precision-engineered 4-flute carbide corner radius end mill from RedLine Tools delivers exceptional performance for demanding machining applications. Featuring a 1-inch cutting diameter with a 0.125-inch corner radius, this square end mill is designed to provide superior surface finishes while extending tool life. The variable helix and variable index geometry work together to reduce chatter and vibration during cutting operations, enabling higher feed rates and improved productivity. Coated with advanced AlTiSN finish, this end mill offers enhanced heat resistance and wear protection for extended cutting performance across a wide range of materials. The robust carbide construction ensures durability and maintains sharp cutting edges even under challenging conditions. With a 1-inch shank diameter and 4-inch overall length, this tool provides excellent rigidity and reach for various milling operations. Made in the USA, this end mill represents quality craftsmanship and precision manufacturing standards that professional machinists depend on for consistent results.