Spyder Products designed its Black Series bi-metal reciprocating saw blades for tough cutting tasks. The manufacturer claims that the blades, constructed from an 8% cobalt blend, are faster and more durable than standard bi-metal blades. Available in lengths of 6, 9, and 12 inches, and with from 6 to 18 teeth per inch, the various blades are ideal for cutting wood, nail-embedded wood, thick materials, or metal, according to Spyder. Blades come in three- and five-piece packs and in a 14-piece variety kit with a storage case. They’re available at Lowe’s, starting at $80. spyderproducts.com