10 Piece, Wood & Metal Cutting, T-Shank, Jig Saw Blade Set, For General Purpose Wood Cutting & Varied Thicknesses Of Metal, Ferrous & Non-Ferrous, & Plastics, T-Shank For Maximum Grip & Stability, Set Includes: Includes: (2) 4" 10 TPI, (2) 4" 5-6 TPI, (2) 3-1/4" 12 TPI, (2) 3-5/8" 17-24 TPI & (2) 3-5/8" 11-14 TPI Jig Saw Blades.