High Hardness & Super Toughness: Our Wood Log Splitter Firewood Drill Bit made with high carbon steel. No easy to breaks due to vibration.High temperature quenching hardness of super strong. It's exceptionally strong, impact resistant and wear resistant. Different sizes Drill Bits: Different sizes to meet your all needs and can be used for different types of electric drills.long service life, high hardness, super toughness. Advantage: Split tough oak, hickory, walnut, sycamore;Not recommended for knotty woods or large diameter hardwoods. High Quality Material: Made of high quality high carbon steel,it' s exceptionally strong, impact resistant and wear resistant. No easy to breaks due to vibration. Advantage: This versatile wood splitter hand tool works great for splitting oak,hickory, walnut and so much more. Widely applicable to home,outdoor,camping,farms. Dimensions: 15.8*3.2*3.2cm Color: Black Material: Carbon steel