MAKE YOUR OWN MOULDINGS...Many vehicles still use mouldings that have "square" corners. Now you can make your own mouldings. Place your universal moulding on the lower jaw of the moulding cutters and squeeze the handle. A sharp utility knife blade cuts the moulding straight, smooth and at the proper angle. The GAC245 has cast-in degree marks to help you get the proper angle on your mitered cuts. One very important thing about the GAC245 is the fact that you can change the cutting blade. Simply remove one screw, remove the old dull blade and replace it with a new sharp blade. Uses standard utility knife blades.