Product Description Hyde 19408 Heavy duty carbide blade cutter tool will score cement board, drywall, fiberglass roofing and more. All 3 edges are made with razor blade sharp edges and Tungsten Carbide steel-for longer life. Chisel cuts in all types of masonry backing panes. From the Manufacturer Score cement board, drywall, fiberglass roofing, flooring and laminate materials. Make chisel cuts in all types of masonry backing panels. Cement board cutting tool for Durock and Wonderboard. 3 tungsten carbide cutting edges.