Genera PROTO®️ Industrial Tools, part of Stanley Black & Decker's Industrial & Automotive division manufactures, markets and sells industrial hand tools to professionals worldwide. Pros who work the most demanding jobs, demand the most from their tools. Which is why every day, all over the globe, millions of workers reach for PROTO®️ Industrial Tools. Our tools tackle heavy-duty industrial applications, like auto, steel and airplane manufacturing plants, chemical factories, refineries; and transportation, fleet, truck and transit maintenance facilities, and more. In fact, PROTO®️ branded industrial tools are some of the most durable tools available – exceeding ASME standards. Their design and product features reflect the direct knowledge and experience of professionals. Developed according to strict ergonomic standards, PROTO®️ Tools offer special advantages such as enhanced shock absorption and reduced slip, as well as unique designs that improve efficiency, productivity and are easy to use. - These folding hex key sets contain multiple hex keys attached to one handle and fold into the handle for quick access and to ease transport in a pocket, tool pouch, or tool box. - Sets come with an assortment of hex keys for a range of fastener head sizes. Tip Size / 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm Finish / Black Oxide Overall Length / 3 in Number of Pieces / 1 Container Type / Plastic Holder Length Family / Short End Shape / Hex Number of Tips / 7 Measurement Type / Metric Material / Steel Driver Material / Alloy Steel Key Shape / Folding Tip Size Code / H1.5, H2, H2.5, H3, H4, H5, H6 Handle Type / Plain Grip Style / Molded Handle Material / Plastic Handle Color / Blue Standards / ASME B18.3M