Description This item is a set of ratchet socket adapters which is specially designed for screwdrivers or electric screwdriver handle tools, which can be installed on the hex shank size of origin to be converted to square head size. The set is ideal for repairing, modifying the car, transforming the socket wrench. It can be used in automotive industry, household maintenance, manufacturing industry, construction. A great helper in your daily life. Feature - Color: Silver - Material: Chrome vanadium - Size: 1/2" to 3/8" - (square hole 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" - (square hole 6.35mm to 9.53mm square head) Length: 25mm Package including 4 x Socket Adapter Converter