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. - Striking box-end wrenches have an offset handle that allows access to fasteners in tight spaces. - They have a block shape on one the end of the handle that is struck with a hammer to loosen or tighten a fastener. - Wrenches are metric with an opposite end having an enclosed head end (box end) that fits around the entire head of the fastener for a more secure grip while turning compared to an open end. - Design has 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. Material / Alloy Steel Finish / Black Oxide Head Size / 2 3/16 in Overall Length / 13 in Head Offset Angle / 45 Degrees Head Thickness / 1 1/2 in Measurement Type / SAE Head Type / Offset Tether Style / Tether Capable Corrosion Resistant / Yes Box End Type / 12-Point Box End Number of Points / 12 Handle Type / Offset Handle Color / Black Weight / 6.78 lb Nominal Size / 2 3/16 in Standards / GGG-W-636E