Featuring a 1/4 inch hex shank, keyless drill chuck bit seamlessly fit into power tools for quick and secure installation. With this quick-replacement capability, you can easily convert your cordless power screwdriver into a drill, enabling seamless transitions between different tasks and reducing project completion time. These keyless drill chucks can easily turn a cordless electric screwdriver into a drill or grinder; You need to turn the tail to make adjustments to quickly switch tasks and maintain work progress; They are essential power tool accessories. Made of aluminum alloy material with body, and removable steel connecting rods to withstand rigorous use and provide long-lasting performance. Tough materials reliability and durability so you can tackle a variety of drilling tasks with confidence. The set contains 2 keyless drill chucks and 10 drill bits in the range of 1.0-4.0 mm. One silver lining measures 2.7 inches with a clamping range of 0.3-6.5 mm, and the other black measures 1.9 inches with a clamping range of 0.3-3.6 mm. These sizes are designed to meet a wide range of work requirements. The drill chuck extension is small size, and light weight, which not bring extra burden to your operation. With their different specifications, these drill chucks are compatible with most drills and cordless screwdrivers. The two different keyless chucks are suitable for a wide range of applications, including daily maintenance, car repairs, working in garages and warehouses, as well as and home use., Manufacturer: Akfldms