5IE11 5IE11 info Material: Brass Original producer: ISEO (IT) Bit width (E): 19.900mm Stem diameter (B): 4.400mm Bit length (D): 14.500mm Key length (A): 70.700mm
KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm