General description This item is a set of ratchet socket adapters specially designed for screwdrivers or electric screwdriver handle tools, allowing conversion from hex shank size to square head size. The set is ideal for repairing and modifying cars, as well as for use in household maintenance, manufacturing, and construction. It serves as a great helper in your daily life. Technical specifications Color: Silver Material: Chrome vanadium Sizes: 1/2" to 3/8" (12.7mm square hole to 9.53mm square head), Length: 36mm 3/8" to 1/4" (9.53mm square hole to 6.35mm square head), Length: 26mm 3/8" to 1/2" (9.53mm square hole to 12.7mm square head), Length: 35mm 1/4" to 3/8" (6.35mm square hole to 9.53mm square head), Length: 25mm Compatibility and accessories Includes 4 x Socket Adapter Converters