Build this box from plywood or MDF and use it to cut tenons, lap joints, rabbets and other joints on the ends of boards. It makes accurate cuts and keeps your hands well away from the blade.
Make the box wide enough so the clamp handle will fit inside, and screw a board on the side at 90 degrees to support the piece you're cutting. To use the box, slide it against the table saw fence. To ensure accurate cuts, build the box with parallel sides that are 90 degrees to the saw table.
Also see https://www.youtube.com/watch?v=4CvMccfXKnk
