Turn an ordinary circular saw into a precision edge-guided cutting tool. Great projects start with high-quality cuts, and you can make those cuts - more easily than you ever imagined - using your circular saw plus the Rip- Circular Saw Edge Guide. The Kreg Rip- turns your circular saw into a precision edge-guided cutting tool that makes straight, accurate, repeatable cuts in plywood, MDF, and other large sheets. With the Rip- circular saw guide, you can with the confidence you want and the precision you need. The Rip- easily makes straight, accurate, repeatable cuts without measuring, marking, or having to keep the saw on the line. The Rip- does this with a long edge guide that follows the straight edge of the sheet you are cutting. All you have to do is lock the saw in at the measurement you want - up to 24" - using the built-in measuring scale, and then make your . Includes: (1) universal saw sled, (1) aluminum guide rail, (1) precision edge-guide, and owner's manual.