Stahlwille Combination Wrench OPEN-BOX, Long, is made of chrome alloy steel, drop forged, hardened and tempered to provide high torque and added leverage, and polished with chrome finish for protection against rust and corrosion and offers high hardness. This professional wrench has extremely thin-walled rings which facilitate work in confined or tight spaces, perfect hand tool for automotive repair and maintenance, machinery, etc. The ring head is angled at 10 degrees and has slim heads. It is also manufactured to DIN 3113 Form B/ ISO 7738 Form B specifications which specifies the overall length and the maximum head thickness of combination wrenches. Made of course in Germany and manufactured under the most stringent quality control conditions and specifications. There are many wrenches available. But hardly any that are as well thought out as Stahlwille wrenches. The non-slip finish means all our wrenches fit comfortably in the hand, even when used for long periods of time and when higher forces are applied. By combining high-quality special steels, which are subject to continuous quality controls, with a sophisticated forging process, we make them particularly durable and robust. The thumb groove along the wrench handle eliminates material where there is no stress and concentrates it where it is needed. Similar to the principle of an H-beam in construction, extreme load bearing capacity and maximum flexural strength are achieved with lower weight. As one of only a few manufacturers, Stahlwille offers a comprehensively diverse range of metric, imperial, spline drive and TORX wrenches. Stahlwille's tight manufacturing tolerances and reproducible dimensional accuracy ensure that one Stahlwille wrench is as close-fitting as the next. In this way, both open-jaw and ring wrench will always firmly hug the fastener head for excellent power-lock.