E. Emerson Tool Co. CW99 99-Inch All-In-One Contractor Wide Straight Edge Clamping Tool Guide The Contractor Series from EThis product is easy to use easy to install and highly durable This is easy to use and easy to install The additional convenience of the recessed tracks is a flat top that can be used with bearing shank router bits No more C-clamping with a self-clamping straight edge to guide your power tools for truly straight cuts Extra wide rail for exceptional rigidity and low profile for obstruction free cuts Make lengthwise cuts on 4 foot by 8 foot stock Nylon jaws hold work piece securely and are predrilled for accessory Wide Jaws and Tall Jaws Recessed tracks accept Contractor series Saw Plate, Router Plate and Stop Block but will not work with A, Twin or Ultra series accessories