Includes 1 each: No. 3071412 (543.1259) HCS Wood cutting blade, No. 3071406 (SKU 360.6324) HCS Wood cutting blade, No. 3071314 (634.7959) HSS Metal cutting blade, No. 3071320 (836.2618) HSS Metal cutting blade and (2) No. 3071410 (361.3874) HCS Wood cutting blade. IRWIN Jig Saw Blade 6 Piece Set – U Shank offers an assortment of wood cutting and metal cutting jig saw blades. Wood Cutting Blades: Precision ground teeth for fast smooth cutting in hard and soft wood, plastics, laminate particle board and plywood. Metal Cutting Blades: Fully hardened teeth for cutting ferrous and non-ferrous metals, aluminum and sheet steel.