5AU11 5AU11 info Material: Brass Original producer: AUNO (IT) Bit width (E): 22.150mm Stem diameter (B): 4.750mm Bit length (D): 24.400mm Key length (A): 94.000mm
2AS3 2AS3 info Material: Steel Original producer: ASSA (SE) Bit width (E): 18.000mm Stem diameter (B): 5.000mm Bit length (D): 14.600mm Key length (A): 94.000mm Use: Cartridges and boxes
MER43RP copy of MER35RP info Material: Nickel-plated brass Original producer: MERONI (IT) Stem diameter (B): 1.750mm Key length (A): 50.100mm Blade length (G): 14.300mm Blade width (H): 6.000mm