2 Pieces in the package: The garden auger drill bit set contains 2 pieces of different sizes (9 x 40 cm, 4 x 42 cm) heavy-duty augers. Sturdy material: Each auger is made of premium manganese steel, rust-proof and unbreakable. The digger rods inside are strong and will not deform. The bulb drilling surface has a black coating and provides double protection against rust. Universal compatibility: The garden drill bit is suitable for all cordless electric drills with an adjustable chuck or for drills with a fixed chuck of 8 mm or more. We recommend using 18 V or more powerful drills, hundreds of planting holes can be drilled in just a few minutes. High efficiency: The spiral design with a sharp drill head and a solid rod ensures that different types of soil are easy and quick to dig. The distance between the bottom of the graver blade and the tip of our garden drill bit is designed to make the auger drill work quickly on hard ground without pressing down. Widely Used: No more blisters or