Erowa ER-043123 Compatible Pneumatic Chuck. RHS version Optimized compatible ER-043123 ITS Chuck is 100 INOX integrated into a CNC base plate. 2 air connections on lateral side of chuck, one is for controlling chuck open or close, the other one is for controlling air go through the holes on top surface. Product requires air pressure 6 bar, clamping force is up to 10000N. It applies to accomdate pallet diamiter 115/diamiter 148, electrode holders and milling on CNC lathe.