Electron ER-50 Classic Set B (Special Order Custom Set)Electron ER 50 Classic Set B (Special Order Custom Set) Powerful and precise Pick up an ER50 Classic and even before operating it you can tell the power and precision for which it was designed. With its main cage and parts being milled from solid 7075 T6 aviation grade aluminium, it is capable of working day in and day out from any kind of runway with models of up to 30kg Square spindle for increased speed and torque Electron Retracts ER 50 Classic