This tool will help you Make the Cut. Making straight, true cuts up to 8 ft. 6 in. is really quick and clean with the Pro's Edge. This rigid, durable, extruded aluminum straight edge is the perfect partner to your circular saw, saber saw, router or utility knife. Just line it up, secure it with its locking clamps and make your cut. 2 c-clamps and a joiner plate are included.