Wood Drill Bit SizeTotal length: 16cm, drill bit length: 11cm, drill bit diameter: 42mm. Suitable for drill bits with 1/2 round shank and 1/2 hexagonal shank. High-quality materialsThe wood drill is made of high-carbon steel material, which is impact-resistant, wear-resistant, high hardness, high toughness, good durability and long service life. High-quality materialsThe wood drill is made of high-carbon steel material, which is impact-resistant, wear-resistant, high hardness, high toughness, good durability and long service life. Efficient workAn efficient wood cutter for cutting and opening wood, quickly separating wood and improving productivity. Not recommended for Nordic wood or large diameter hardwood. How to useJust install the drill bit into the electric drill and drill into the wood, and the firewood will be easily crushed with its optimal hardness and strength. There is no moving blade, and no need to worry about your child swinging the axe.