Thread Restorer, Manufacturer suggested retail price. $87.60 Features and Benefits: Contains: 7 National coarse dies, sizes: 1/4" - 20, 5/16" - 18, 3/8" - 16, 7/16" - 14, 1/2" - 13, 9/16" - 12, 5/8" - 11 7 National fine dies, sizes: 1/4" - 28, 5/16" - 24, 3/8" - 24, 7/16" - 20, 1/2" - 20, 9/16" - 18, 5/8" - 18 6 metric dies, sizes: M6 x 1, M8 x 1.25, M10 x 1.5, M12 x 1.25, M12 x 1.5, M12 x 1.75 6 National coarse taps, sizes: 1/4" - 20, 5/16" - 18, 3/8" - 16, 7/16" - 14, 1/2" - 13, 9/16" - 12 6 National fine taps, sizes: 1/4" - 28, 5/16" - 24, 3/8" - 24, 7/16" - 20, 1/2" - 20, 9/16" - 18 6 metric taps, sizes: M6 x 1, M8 x 1.25, M10 x 1.5, M12 x 1.25, M12 x 1.5, M12 x 1.75 One SAE rethread file, 8 sizes (threads per inch) 11, 12, 13, 14, 16, 18, 20, 24 One metric rethread file, 8 sizes (millimeters per thread): .75mm, 1.00mm, 1.25mm, 1.50mm, 1.75mm, 2.00mm, 2.50mm, 3.00mm Packaged in a plastic blow molded case Manufacturer: Kastar Sets & Kits do not have warranty/ see individual pcs for details