IEY1274 Features: * Specifically designed for drilling stainless steel and other hard abrasive materials * Easily withstands high drilling heat * Rugged 135 split point provides easier penetration * No center punching needed * Drill bit 5/16"" Cobalt display card * Cobalt Drill Bit Display Card 5/16 in. Dimensions: * Overall length: 4-1/2"" * Flute length: 3-3/16"" Warranty: * Lifetime warranty does not cover abuse