Bosch 5-Pack 5-1/4" 5-10 TPI T-Shank Progressor Jig Saw Blade is an all-purpose blade for various materials including wood with nails, plywood, particle board 3/16" - 3-5/8" thick, metal 3/16" - 3/8" thick, non-ferrous metals 5/64" - 1-1/4" thick. It is made of bi-metal construction for durability and long life. It has a working length of 4-1/4" and a thickness of 0.05".

• 5-pack of 5-1/4 In. 5-10 TPI T-Shank Progressor Jig Saw Blades.
• All-purpose blade for various materials including wood with nails, plywood, particle board 3/16 In. - 3-5/8 In. thick, metal 3/16 In. - 3/8 In. thick, non-ferrous metals 5/64 In. - 1-1/4 In. thick.
• bi-metal construction for durability and long life.
• Working length of 4-1/4 In. and a thickness of 0.05".