Bosch T118B3 3-Piece 3-5/8 In. 11-14 TPI Basic for Metal T-Shank Jig Saw Blades N/A Imported For medium to thin metals 1/4 In. to 1/8 In. thick (ferrous and non-ferrous) 11-14 tooth design for smooth cuts High-speed steel construction for maximum life in straight cuts 3-5/8 In. overall length, 2-5/8 In. working length Proper lubricant is recommended when cutting metal