Carbide tipped demolition blades that are made to cut almost anything. Equipped with solid steel welded tungsten carbide segments for roof breaching and rescuing applications. Blade can be reversed to expose new edges during use. Good for tar/gravel roofing, fiberglass, wood/roots, asphalt shingles, rubber, plastic, and metal sheets/studs. 7 inch blade diameter with 1/4" segment width and 7mm segment height. Use wet or dry with handheld grinders or high speed saws.