Package Includes: You will receive drill chuck adapter kits, including 1 drill chuck adapter, 4-way chuck key, 1/4 inch hex key, 1/2 inch square socket converter, 1/4 inch round adapter, suit your multi-tool connector needs Beautiful: Drill chuck adapter has a three-jaw with a fixed range of 1.5-10 mm (1/16 inch-3/8 inch), which can securely fix various twist bits, step bits, paddle bits and some circle saws, it can bring you convenience when you work Wide Compatibility: Drill chuck adapter tool suitable for gyro screwdriver, cordless screwdriver, impact driver, impact wrench and some angle polishing machines, compatible with for , , , , and d Useful Combination: With chuck adapter and 4 tools, you can get a useful combination and help you lock your accessory more stable, so save your time and energy to choose tools or complicated working procedure Material: The chuck is made of zinc alloy, and sturdy, you can use it at ease and for a long time and you can turn the key to complete the