Wood Drill Bit SizeTotal length: 16cm, drill bit length: 11cm, drill bit diameter: 42mm. For drills with 1/2 round shank and 1/2 hex shank. High quality materialThe firewood drill is made of high carbon steel material, which is impact resistant, wear resistant, high hardness, toughness and durability high for a long life. AdvantageGrooved anti-slip design for long working hours, making work comfortable. Efficient WorkEfficient wood cutter for cutting and opening wood, quickly separating wood and increasing productivity. Not recommended for Nordic woods or large diameter hardwoods. How to UseJust install the drill bit into the electric drill and drill into the wood, and the firewood will be pulverized easily with its optimal hardness and strength. No moving blades, and no worry about your kids swinging an axe. Product Description 1. Made of high quality high carbon steel 2. All kinds of soft and hard woods can be opened. 3. Fast log separation and increased productivity. 4. Titanium coating to reduce friction and heat by heat treatment 5. It is exceptionally strong, impact resistant and wear resistant. 6. Suitable use for home, outdoor, camping, farms to cut firewood easily like split hard oak, hickory, walnut, sycamore and so on. Packing list: 1 * wooden cone drill 1 * square handle 1 * round handle 1 * hex shank