High-Carbon Steel Bi-metal Reciprocating Saw blade set 10pcs. Ideal for cutting wood, plastic and metal. Product Features High grade HCS steel Bi-metal construction Works with all major reciprocating saws brands such as Bosch, DEWALT, Hitachi, Makita, Milwaukee, Metabo and Craftsman, etc. Blades Specification: 2x 8" 6 TPI (Teeth Per Inch) Wood Blades 4x 6" 6 TPI (Teeth Per Inch) Wood Blades 2x 6" 10 TPI (Teeth Per Inch) Wood Blades 2x 6" 18 TPI (Teeth Per Inch) Wood Blades