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 metric combination wrench sets have a 12-pt. - Box end with additional grooves that make it easier to connect with the head of the fastener and connect at more angles for better accessibility compared to a 6-pt. - The opposite side has an open end design that allows top and side access to the fastener compared to the box end that can only access a fastener from the top. - These wrenches have the same metric size on each end for use on one specific size fastener. Material / Alloy Steel Finish / Satin Number of Tools / 15 Range of Head Sizes / 7 mm to 21 mm Head Offset Angle / 15 Degrees Head Type / Offset Container Type / Canvas Pouch Measurement Type / Metric Head Size / 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm Opening Type / Rounded Opening Angle (Deg.) / 15 Degrees Tether Style / Tether Capable Corrosion Resistant / Yes Anti-Slip Design / Yes Container Color / Red Box End Type / 12-Point Box End Number of Points / 12 Head Thickness / 1/4 in, 15/64 in to 1/2 in, 31/64 in Range of Lengths / 5 5/32 in to 11 13/16 in Wrench Length Style / Long Wrench Product Grouping / Wrench Sets Includes / Canvas Pouch Standards / ASME B107.100 Weight / 4.25 lb Handle Type / One Piece