- High Efficiency Spiral Drill Bit: Our advanced welding process ensures a strong bond between the blades and the main shaft, allowing for deeper drilling. This feature simplifies planting tasks and boosts efficiency in your gardening projects. - Versatile Set of 4 Sizes: This set includes four different sizes (1.6"x8.67", 1.8"x14.57", 3.1"x11.81", 3.5"x15.75") to meet a variety of planting needs, making it a flexible choice for any gardener. - Compatible with 3/8" Hex Drill Driver: Engineered to work with most 3/8" or larger chucked drills, this compatibility ensures ease of use and convenience for all users. - Durable and Reliable: Crafted from high-quality materials, these auger drill bits are designed to withstand demanding digging tasks, providing long-lasting performance you can count on. - Wide Range of Applications: Ideal for planting small crops, flowers, and transplanting seedlings. They are also effective for mixing seeds, soil, and fertilizer, and can be used for fence and tent installation, enhancing the utility of your drill bit set. With this drill bit set, you can streamline your planting process, ensuring successful and efficient gardening every time.