Nederman Swing Arms are especially designed for on-tool extraction of grinding dust and welding fumes. Nederman Swing Arms are available in two models, each in lengths of 10ft., 15ft., or 20ft. Swing Arm - SA-G is excellent for the extraction of dust. It is especially designed for on-tool extraction of (grinding) dust. Swing Arm - SA-GA is supplied with a rail reinforcement to easily mount a wirefeeder, making it ideal for a combined extraction of grinding dust and welding fumes. Nederman Swing Arms come standard with accessories to mount them to a wall or column and thay come with an integral compressed air supply, enabling you to connect an air powered tool in an efficient way.