The drill bit is made of high-speed steel with high hardness, high wear resistance and heat resistance, which can easily cut steel plate, aluminum plate, copper, plastic and wood board, etc.Features:Three kinds of shank, square, round and hex.Suitable for using with electric drill.Used to split large firewood, wood easily.Hardening processing, sturdy and durable to use.Specifications:Material: Carbon steelColor: As pictures showShape: Square shank, Round shank, Hex shank (optional)Shank Diameter: 10mm / 0.39inItem Size: 145 * 32mm / 5.71 * 1.26inPackage Weight: 330g / 11.64ouncesPackage Size: 145 * 50 * 50mm / 5.71 * 1.97 * 1.97inPackage List:1 * Hex Shank Drill Bithigh-speed steel construction and for longer cutting edge life even at extreme temperatures.