Bosch RAP9V 5-Piece 9 In. 10/14 V TPI All Purpose Reciprocating Saw Blade All-purpose blade for nail-embedded wood, metal, sheet metal, aluminum, reinforced plastics, and sandwich materials 10-14 TPI with variable gullet depth for faster chip removal and smoother cuts Thinner .035 In. blade body allows faster cutting Bi-metal construction for durability and long life 5 piece pack