Diablo 14" x 72T Steel Demon Cermet II Saw Blade for Medium Metal D1472CF PACK:4 Pk the dual edge reversible format means the dual edge reversible format means you get two full cutting lives per knife keeping tooling costs predictable without sacrificing edge quality on hardwood or abrasive panel materials like MDF and chipboard C 3 mechanically galvanized coating provides durable corrosion resistance suited to fiber cement board and wood fastening applications where long term protection matters even in demanding cutting applications burr free results with dramatically less spark output than conventional grinding methods