Features 1、Three kinds of shank, square, round and hex. 2、Suitable for using with electric drill. 3、Used to split large firewood, wood easily. 4、Hardening processing, sturdy and High quality to use. Specification The drill bit can be matched with electric hammer to split wood easily, High quality to use. Three drill bits with different shank shapes，you can choose the one which you need. 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 High quality to use. Specifications: Material: Carbon steel Color: As pictures show Shape: Square shank, Round shank, Hex shank (optional) Shank Diameter: 10mm / 0.39in Item Size: 145 * 32mm / 5.71 * 1.26in Package Weight: 330g / 11.64ounces Package Size: 145 * 50 * 50mm / 5.71 * 1.97 * 1.97in Package List: 1 * Hex Shank Drill Bit Package List 1 * Hex Shank Drill Bit