The Bora WTX clamp edge saw guide makes it easy to achieve straight, precise cuts when you’re cutting large sheet material like plywood or MDF. Just adjust the clamp end to the desired length and lock it in place – and you’re ready to go. It’s the easiest way to make precise, track saw-like cuts. The WTX clamp edge now comes with a ruler on the top side of the clamp. It shows measurements in both inches and centimeters, up to 50-inches long. When added, the extension increases the scale to 100 inches.