IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools. IVY Classic Premium Swift Cut Roofer's Carbide Circular Saw Blades are designed for rough cutting nail-embedded plywood, tar paper and shingles. These heavy-duty professional blades are constructed for their outstanding cutting performance. They feature triple chip ground C3 modified tungsten carbide teeth and reinforced shoulders which help stabilize the carbide against impact.