KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm
MER44R MER44R info Material: Brass Original producer: MERONI (IT) Key length (A): 49.95mm Blade length (G): 15.45mm Blade width (H): 6.650mm