KOPT Optimus Key info Bit width (E): 36.500mm Stem diameter (B): 8.000mm Bit length (D): 15.100mm Key length (A): 121.005mm
KSASTW Xianpai S.T.W info Key length (A): 49.850mm Bit thickness (F): 2.900mm Blade length (G): 26.000mm Blade width (H): 8.000mm