Highlights:Shank Type: HexMaterial: Carbide TippedDrill Bit Diameter: 5/16"ResharpenableDesigned for rotary or percussion drillingNew quick connect shankChrome vanadium steel shank for strength and flexibilityBit has a flat bottom parabolic flute for faster waste removalConforms to ANSI standardsWhile we aim to supply accurate product information, it is sourced by manufacturers, suppliers and marketplace sellers, and has not been provided by Overstock.