Erowa EDM Quick Chuck 50 with Horizontal Extension Arm is compatible with EROWA ITS system and is equivalent to QuickChuck 50 ER-034387. Erowa Quick Chuck comes pre-mounting on a Horizontal extension arm. The product comes with Chucking Spigot F/A ER-007980 and 1 piece of chuck handle. Applicable to extend the working area for QuickChuck when doing EDM/WEDM. The extension arm can be customized as per the application required.