Features: 10pieces 12 point bit socket with 1/4inch 3/8inch 1/2inch drive. Precise bit to ensure accurate size. Manufactured from steel with heat treated for extra strength and durability. Each bit with its size imprinted on bit itself, making it easy to identify after you have removed a handful from the case. All parts is well packed and assorted in a plastic box for convenient storage and carry, meeting your different needs for all kind of repair work. Ideal for professional mechanics and DIY enthusiasts requiring reliable automotive repair tool for frequent bolt/nut adjustments in workshops or home garages. Specifications: Material:Metal Package Includes: 10Pcs Socket Adapter note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.