Features: hexagon socket in accordance with DIN 7422 square drive in accordance with DIN 3120 / ISO 1174 with ball catcher groove, short design, with pressed, nickel-plated bit insert, for manual operation, matt satinised chrome vanadium, technical data: size (hexagon socket): 1/4 square drive, 1/2 inch inner diameter: 25.0 mm, weight: 31268 g, total length: 38.0 mm, material: fine chrome molybdenum, ISO included: DIN 1174 mm.