Stored in a convenient folding case, the TEKTON 30-pc. Hex key Set offers the most common inch and metric hex wrench sizes to remove and install most socket cap screws found in cars, furniture, equipment, and more. The versatile long arm/short arm design offers extra reach on one end, and extra leverage on the other. Made from heat-treated steel, these wrenches will deliver years of consistent performance. Precisely sized ends are chamfered to slide easily into fastener, reducing wear on the wrench and damage to fastener head. The unique hinged storage case opens flat, making it easier to get wrenches in and out, and has high-visibility size markings for fast size selection.