Colour Multicolor Brand HEXAR Material Stainless Steel Manufacturer China About this item The ½″ drive makes it suitable for more demanding work (automotive, heavy machinery) rather than just light bolts. Chrome-vanadium material means it should hold up well under repeated use and resist rounding-off of fasteners. Chrome finish is helpful in oily/greasy workshop environments for easy cleaning and better visibility of markings. Having a set of sockets in one portable kit is efficient and convenient for mobile tradesmen or home garage use. Drive size: ½″ (12.7 mm) square drive – compatible with standard ½″ ratchet handles.