This is a Vessel socket driver. Socket size: 17mm This is an unused item, but due to the nature of industrial products, there may be some dirt, scratches, or scuffs due to product precision, transportation, and storage. However, there are no problems with use. We appreciate your understanding. The packaging may show signs of aging, dirt, and discoloration. Thank you for your understanding. Tools, hardware, construction, civil engineering, carpentry, woodworking, craftsmen, electricians, electrical work, piping, wooden frames, wooden molds, temporary frames, foundations, maintenance, repair, remodeling, DIY, electrical work, bicycles, cars, motorcycles, road bikes, cross bikes, drills, screws, bolts, nuts, screws, screw drivers, wood, lumber, electric drills, power tools, impact drivers, bits, models, plastic models, radio control, assembly, scaffolding, plus, minus, instant purchase OK, demolition, renovation, remodeling, construction workers, marking pots, marking, marking out, setting standards, surveying, design, drafting, wooden molds, temporary frames, 2x4, electric saws, cutting, sheet metal, cut, two-by-four, circular saws, chip saws, maintenance, concrete, mortar, straight lines, line drawing, scales, tape measures, measuring tapes, saws, wood, lumber, instant purchase OK, marking, retro, antique, Hitachi, HiKOKI, Makita, RYOBI, Kyocera, tool holders, holders, tool belts, tool bags, nail bags.