KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm
UR2R UR2R info Material: Steel Original producer: URKO (ES) Key length (A): 44.200mm Blade length (G): 19.400mm Blade width (H): 7.100mm
ABU55/50 Abus 55/50 info Material: Nickel-plated brass Original key: Y Original producer: ABUS (DE) Stem diameter (B): 2.000mm Key length (A): 49.050mm Blade length (G): 21.000mm Blade width (H): 7.300mm