Diablo, demo demon, 3 pack, 12'', carbide tipped fast wood reciprocating blade, pruning & fast clean wood blades feature aggressive carbide tooth geometry for unmatched 50 times longer cutting life, faster cuts & increased productivity in pruning & clean wood cutting applications, designed with large gullets & a strengthened, oversized blade body for fast chip removal in extreme cutting applications, blades feature perma-shield non-stick coating to prevent gumming & friction for fast, effortless cuts in some of the toughest wood cutting scenarios.