Stahlwille 96400651 Small Double Open-Ended Wrench (Spanner) Set, Electric is made of chrome alloy steel, drop forged, hardened, and tempered to provide high torque and added leverage. This set includes 3.2, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 mm small double open ended wrench electric. The wrenches are polished with a chrome finish for protection against rust and corrosion. This set has 15-piece straight wrenches and its jaw positions are at 15 degrees and 75 degrees. These professional wrenches are stable, slim, and light with high flexural strength due to the double-T profile. It also has a non-slip, skin-friendly surface thanks to the Stahlwille round finish. It is extremely resilient and extraordinarily durable. Made of course in Germany and manufactured under the most stringent quality control conditions and specifications. As a traditional German company from Wuppertal, we have stood for tools that are valued worldwide for their excellent quality for over 150 years. There are many wrenches available. But hardly any 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 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 a 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 wrenches will always firmly hug the fastener head for excellent power-lock.