High Quality Material - Made of high quality high carbon steel, it is exceptionally strong, impact resistant and wear resistant. Not easy to break due to vibration. Note: Our wood splitting cone drill bit is not used for freshly cut logs. 3 Modes of Drill Bits: 32mm/42mm, Square Handle, Round Handle, Hex Shank. Different models and sizes to meet all your needs and can be used for different types of electric drills. Efficient Work to Save Time: Effective tools for wood splitting and opening for quick log separation and increased productivity. Titanium coated to reduce friction and heat by heat treatment, makes cutting easier and more durable. Unique Design and Easy to Use: The geometry reduces friction and saves time. Simply install the drill bit into the electric drill. (Fits most magnetic drills). Advantage: This versatile hand tool is perfect for cutting oak, walnut, etc. Widely applicable to home, outdoor, camping, farm. Not recommended for knotted wood or large diameter hardwood. Quantity delivered: 4 pieces (32 bits + 3 rods (round rod, square rod, hex rod)