Bosch T308B 5-Piece 4-1/2 In. 12 TPI Extra Clean for Wood T-Shank Jig Saw Blades Designed for extra-fine straight cuts in hard and soft woods, plywood, laminated particle board and MDF 12 TPI tooth profile and high carbon steel blade body for extra-clean clean cuts and long life in wood 4-1/2 In. overall length, 3-1/2 In. usable length 5 piece pack