Wood Drill Bit SizeTotal length: 16cm, drill bit length: 11cm, drill bit diameter: 42mm. For 1/2 round shank and 1/2 hex shank hole punches.High quality materialThe firewood drill is made of high carbon steel material , impact resistant, wear resistant, high hardness, toughness and durability for long service life.Advantage Grooved non-slip design for long working hours, making work comfortable.Efficient WorkEfficient wood cutter for cutting and opening wood, to quickly separate wood and increase 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 sprayed easily with its optimum hardness and strength. No moving blades, and don't worry about your kids swinging an axe. Product Description< /b> 1. Made of high quality high carbon steel 2. All kinds of soft and hard woods can be opened. 3. Rapid log separation and increased productivity. 4. Titanium coating to reduce friction and heat by heat treatment 5. It is exceptionally strong, resistant to impact and wear. 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 * drill bit wooden cone 1 * square handle 1 * round handle 1 * hex shank