Features: hexagonal according to DIN 3129 / ISO 2725-2, square socket according to DIN 3121 / ISO 1174, long version, for machine actuation, phosphated, chrome, molybdenum, technical data: key width (mm): 85square drive, 1 1/2 inch, diameter: 86 mm, weight: 5980 g, total length L: 1.8 mm, material: finest chrome molybdenum 3121, steel key width: 3 3/8 mm, ISO 1171, depth not included: ISO 3121.