Features: 16-pieces 6 point hex bit sockets with 1/2inch drive. Precise bits to ensure accurate size. Manufactured from chromium-molybdenum steel with heat treated for extra strength and durability. Each bit has its size imprinted on the bit itself, making it easy to identify them after you've removed a handful from the case. All parts are well packed and assorted in a plastic box for convenient storage and carry, meeting your different needs for all kinds of repair work. Hardened and tempered, professional tool for commercial or occasional use. Useful tool kit for automobile repair and maintenance. Specifications: Material: Chromium-molybdenum Steel Item Color: Black Storage Box Color: Blue Drive Size: 1/2inch Socket Size: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm, 27mm, 30mm, 32mm Package Weight: approx.5248g Package List: 16 * Hex Bit Sockets 1 * Plastic Case