Feature 119-pieces 1/2 inch drive bit sockets, precise bits to ensure accurate size 2With a special gear-lock profile that can be used universally 6-point, 12-point, E-torx, metric and inch sizes 3The special shape of the socket allows loosening a nut or screw even if the head of the nut/screw is worn to some extent 4Manufactured from chrome-vanadium steel with heat treated for extra strength and durability 5Each bit has its size imprinted on the bit itself, making it easy to identify them after you've removed a handful from the caseFeatures: 19-pieces 1/2 inch drive bit sockets, precise bits to ensure accurate size. With a special gear-lock profile that can be used universally 6-point, 12-point, E-torx, metric and inch sizes. The special shape of the socket allows loosening a nut or screw even if the head of the nut/screw is worn to some extent. Manufactured from chrome-vanadium 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: Chrome Vanadium Steel Item Color: Silver Storage Box Color: Blue Drive: 1/2" Drive For Metric Size: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 27, 30, 32mm For E-torx Size: E10, E12, E14, E16, E18, E20, E22, E24, E26, E28, E30, E34, E38, E40 Package Weight: approx.2054g Package List: 19 * Bit Sockets 1 * Plastic Case