KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm
ZN1 ZN1 info Material: Steel Original producer: ZENI (GB) Key length (A): 57.350mm Use: Cylinder locks Blade length (G): 29.000mm Blade width (H): 8.000mm Cuts: 5 cuts
WK53R WK53R info Material: Steel Original producer: WILKA (DE) Key length (A): 53.550 Blade length (G): 27.700mm Blade width (H): 8.150mm