Bosch T130RF1 1-Piece 3-1/4 In. 30 Grit Carbide Special for Ceramics T-Shank Jig Saw Blades Cuts ceramics, fiberglass and glass 3/64 In. to 5/8 In. thick 30 grit carbide matrix bonded to blade edge for fine, straight or curved cuts 3-1/4 In. overall length, 2-5/16 In. working length 1 piece pack Designed for ceramics, fiberglass and glass File effect for fine, straight or curved cuts Carbide grit for cutting Coated for ease of cuts