CISA4 CISA-4 CSLC info Stem diameter (B): 4.850mm Bit length (D): 24.300mm Key length (A): 110.700mm Bit thickness (F): 2.400mm
KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm