Bosch 4 in. Rev. Pitch Wood T-Shank Jig Saw Blades, 5 pk are expertly designed to deliver clean top surfaces with minimal splintering on your work pieces. Crafted from high carbon steel, these blades ensure clean, fast cuts through a variety of materials including hard and soft wood, plywood, plastics, OSB, and laminated particle board ranging from 3/16” to 1-1/4” thick. Featuring a T-shank design, they provide maximum grip and control, fitting 90% of all current Bosch jigsaw models. Each blade measures 4 inches in overall length with a 3-inch working length, and this pack includes five blades to keep you well-equipped for your projects. Model Number: T101BR