GT1 GT1 info Original key: Y Stem diameter (B): 8.000mm Key length (A): 80.100mm Hole diameter (C): 5.100mm
5HK1 5HK1 info Material: Brass Original producer: HK (DE) Stem diameter (B): 5.800mm Key length (A): 83.500mm
WITTD WITTKOPP long ORG info Original key: Y Stem diameter (B): 5.700mm Bit length (D): 15.100mm Key length (A): 94.850mm Hole diameter (C): 3.500mm Bit thickness (F): 3.150mm