Specification: Product name: Wood Splitting Drill Bit Material: high carbon steel Color: black Drill size: 92 x 32 mm/3.6 x 1.3 in, 92 x 42mm/3.6 x 1.7 in (optional) Square shank: 12mm/0.5 in Round shank: 10mm/0.4 in Hex shank: 10mm/0.4 in Application: splitting tough oak, hickory, walnut, sycamore, etc. Parts List: 1* Wood Splitting Drill Bit 1* Square Shank 1* Round Shank 1* Hex Shank A?AlUnique DesignA?a?Geometry design reduces friction and saves time, and just install the drill bit into the drill to splitting wood. Efficient tools for logging and opening the wood for quick separation of logs to increase productivity. A?AlStrong & DurableA?a?Wood splitting drill bit is made of premium high carbon steel. It's exceptionally strong, impact resistant and wear resistant, not easy to break due to vibration. A?AlWith 3 ShankA?a?The package includes 1pc dill(32/42mm) and 3pcs shanks, including square shank, round shank, hex Shank. Different models and sizes to meet your all needs and can be used for different types of electric drills. A?AlEasy To UseA?a?Just install the drill bit into the power drill, and drill the wood, then the firewood will be spiltted easily. Without moving blades, you don't have to worry about it hurts your kids. A?AlSuitable ForA?a?The wood splitting drill bit is widely used for splitting tough oak, hickory, walnut, sycamore, etc. It is not recommended for knotty woods or large diameter hardwoods.