( 1 ) NEW HIGH SPEED STEEL REDUCED SHANK DRILL BIT...SIZE: 55/64"....DRILL BIT POINT ANGLE: 118°.....SHANK TYPE: ROUND...SHANK DIAMETER: 1/2"....OVERALL LENGTH: 6"....FLUTE LENGTH: 3-1/8"....APPLICATION: FOR ALLOY AND CARBON STEELS, ALUMINUM, BRASS, BRONZE, CAST IRON,NICKLE BASED ALLOYS, PLASTIC AND WOOD....SEALED AND PROTECTED IN FACTORY PLASTIC....ITEM NUMBER: WESTWARD 4UM81...MANUFACTURED FOR GRAINGER INTERNATIONAL...FOR $ 12.97