The dual-purpose Combination Spline Roller and Screen Wire Cutter can roll fiberglass screen into the frame with one end, and cut the excess screen with the other end. The wheel has a rounded edge, and the blade is made of hardened steel. They are set in a contoured hardwood handle. You can save money, and room in your tool belt, on this 2-for-1 special. Available with two roller sizes in either nylon or steel.