Bosch T344DF 5-Piece 6 In. 6 TPI Speed for Hardwood T-Shank Jig Saw Blades Designed for straight and very fast cuts in hardwood, OSB and plywood 1/4 In. to 4 In. thick 6 TPI tooth profile for exceptionally fast wood cutting Bimetal construction for durability and extra long life 6 In. overall length, 5 In. usable length 5 piece pack This is Bosch's break resistant and durable blade for making fast cuts in hard wood. Application: Hard and soft word, plywood, OSB, wood with nails 1/4" - 4" Benefits: Makes very fast, straight cuts and plunge cuts. TPI: 6 Overall Length: 6"