WoodRiver® Guide Rail 4' x 8' Kit will allow you to place a tool guide for ripping, crosscutting or routing at an acute angle on any size panel. 56" Guide rail component features same heavy-duty aluminum extrusion used in the WoodRiver Clamp Guides. Guide rail component has 2-1/8" x 1/2" profile with integral 1/4" T-tracks. Guide rail connector locks together multiple guide rails to form a continuous guide for your circular saw or router across any length material. Guide rail clamps secure the guide rail at each end. Clamps swivel about the “T” shaped anchor at any angle. Clamps can be placed at any position along the underside of the guide rail extrusion.