8SPSR 8SPSR info Bit width (E): 40.200mm Stem diameter (B): 8.000mm Bit length (D): 25.800mm Key length (A): 139.700mm Hole diameter (C): 4.400mm Bit thickness (F): 2.600mm
KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm