Bosch U101DF 5 pieces 4 In. 6 TPI  Clean for Hardwood U-Shank Jig Saw Blades Designed for clean, straight cuts in hardwood, OSB and plywood and plastics 1/4 In. to 2 3/8 In. thick 6 TPI tooth profile for straight, clean cutting Bimetal construction for durability and extra long life 4 In. overall length, 3 3/16 In. usable length 5 piece pack Bosch's break resistant and durable blade for making fine, clean cuts in hardwood. Application: Hard and soft wood, plywood, OSB, wood with nails, plastics 1/4" - 2 3/8". Benefits: Straight and clean cuts over a longer lifetime. TPI: 6 Overall Length: 4"