Maxx-ER (D/C) Flat Electrode Holder 81X51 Aluminum UniplateMaxx ER Electrode Holder Flat 81x51 Aluminum Uniplate is 100% cross compatible with EROWA ITS System. Similar to the ER 010644 but configured for larger electrodes with a 81x51 sub plate mounted to a Maxx ER 50 plate Comes complete assembled and ready to run Mounting Electrodes Maxx ER 50 Flat Holder 81x51 Aluminum Uniplate Electrode holder is designed to mount electrodes and workpieces with a base surface of more than 80 mm All Maxx ER holders are