The DWS5022 is a reversible 1.5 metre track for use with the DWS520 plunge saws, as well as other DeWalt circular saws and routers. It features a support rail which runs up the middle and distributes weight effectively to deliver an accurate cut. The anti-friction base and replaceable non-slip strip on underside of rail ensure solid performance. The length can be extended by purchasing multiple rails and joining them together using the DeWalt DE6292-XJ Plunge Saw Guide Rail Connector Joining Bar. Features Guide Rail attachment to be used with a plunge saw Offers extremely high levels of accuracy allowing for a better finish which makes this a top quality product Join multiple rails together with the DE6292-XJ Joining Bar Specially designed rail bag available separately for easy transportation and storage The addition of the DWS5031 rail attachment will allow this to be used with your router (all Dewalt Models). This will also accommodate most other brands