KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm
WK53R WK53R info Material: Steel Original producer: WILKA (DE) Key length (A): 53.550 Blade length (G): 27.700mm Blade width (H): 8.150mm
LOB13-2 LOB 13 Nickel info Material: Nikiel Bit width (E): 18.000mm Stem diameter (B): 5.800mm Bit length (D): 9.500mm Key length (A): 75.200mm Bit thickness (F): 4.800mm