Bosch U101B3 3-Piece 4 In. 10 TPI Variable Pitch Clean for Wood U-shank Jig Saw Blades 10 TPI variable-pitch tooth pattern for clean cuts Use for hard and soft wood, plywood, plastics, OSB, laminated particle board 3/16 In. to 1-1/4 In. thick high carbon steel construction for long life in wood materials 4 In. overall length, 3 In. working length 3 piece pack Clean for Wood blades ensure fine, clean cuts in a variety of materials 1/4 In. universal shank (U-shank) blades are suitable for jig saws from Skil, Black & Decker and others Designed for straight, fine cuts For use on hard/soft woods, plastics, osb, plywood, laminated particleboard 3/16 inch to 1-1/4 inch