1. 2 pieces propeller paint mixer (0.26 inch hex shank, note: larger than 1/4 inch), 1 drill chuck (1 1/4 inch hex shank, suitable for drill bits with a diameter of 0.02 inch0.31 inch). The mixer can be firmly connected to 3/8 inch or larger electric drill chucks. And the drill chuck included in this tool set can help you fully adjust 1/4 inch keyless chuck, which can meet most work scenarios. 2. Good quality: the paint mixer is made of metal plastic, which is rustproof, wearresistant and durable. 3. Total size: the propeller mixer paddle head measures 2.23 inches x 2 inches and has a total length of 10.14 inches. In addition, when used with a drill clamp, it can be used for most drills and electric screwdrivers. 4. Efficient and convenient The installation is very simple, but you need to pay attention to avoid splashing water when tightening the drill and ensure that the stirring paddle head is immersed in the material to be stirred.