Specifications: Material: High speed steel Color: As shown Size: 32mm/1.3inch(diameter); 42mm/1.65inch(diameter) [Easy to Use]: You need to hit the outer edge of the wood to split quickly; Split the small-diameter wood vertically. Splitting wedge on the kerf will help you split the wood more efficiently. [Efficient Work to Save Time]: The user-friendly groove anti-slip design that works long hours, makes the work feel comfortable and improves work efficiency and practicality. Package Including: 4Pcs x Firewood Log Splitter Drill Bits Notice: 1. Size in 1-3 cm size difference is in normal range due to manual measurement. 2. Color may have a little difference due to lights, screens, etc.