Specifications: Material: High-quality carbon steel Size: 32 mm (1.26 inch), 42 mm (1.65 inch), 45 mm (1.77 inch) Bit shapes: Round, square, hexagon Efficient firewood splitting: Designed to split wood quickly, especially small, thin pieces and kindling. Performance is optimal on smaller pieces. Hardwoods, wet woods, and large logs may be difficult to split. Suitable for soft woods: Works best on soft, dry wood such as pine. Not recommended for hardwoods (e.g., oak), knotty wood, or wet wood. For logs approximately 20 cm in diameter, multiple passes may be required. Secure the log to prevent rotation during use. Easy to use: Use correctly by drilling straight and starting at the edge—not the center—and avoiding angled entry. For logs over 20 cm in diameter, pre-split with another tool before using this bit. Compatible with various power drills: Works with hammer drills, impact drills, corded and cordless drills. Best results achieved with appropriate electric drills on soft, dry wood. Durable construction: Precision-machined from high-carbon steel with fine threading. Highly impact-resistant and wear-resistant. The bit head is designed to penetrate and separate wood fibers effectively. Power recommendations: The 45 mm bit is intended for heavy-duty use and is best used with a hammer drill. The 32 mm bit is suitable for light-duty use; recommended minimum power is 750 W for electric drills and 500 W for hand drills. Not compatible with impact drills that lack hammer function or with three-jaw chucks. Package includes: 1 x Drill + 3 x Bits