The double-edged Spyder 3X3 reciprocating saw blade lets you make multi-directional cuts without flipping your saw over. 8% bi-metal cobalt cutting edges power through metals, wood with nails and demolition tasks without overheating or wearing out. The rounded tip plunge cuts into drywall and other materials for added cutting versatility. Two cutting edges means 2x the life in each 3X3 blade. Exception strength, versatility and durability.