60 piece comprehensive set which is ideal for cutting and renewing external and internal threads to exact standards.Metric Tap Sizes: 3×0.5, 4×0.7, 5×0.8, 6×1.0, 7×1.0, 8×1.25, 9×1.25, 10×1.0, 10×1.5, 12×1.75. UNC Tap Sizes: 4-40, 6-32, 8-32, 10-24, 12-24, 1/4, 5/16, 3/8, 7/16, 1/2. UNF Tap Sizes: 10-32, 1/4, 5/16, 3/8, 7/16, 1/2.Metric Die Sizes: 3×0.5, 4×0.7, 5×0.8, 6×1.0, 7×1.0, 8×1.25, 9×1.25, 10×1.0, 10×1.5, 12×1.75. UNC Die Sizes: 4-40, 6-32, 8-32, 10-24, 12-24, 1/4, 5/16, 3/8, 7/16, 1/2. UNF Die Sizes: 10-32, 1/4, 5/16, 3/8, 7/16, 1/2. NPT Tap: 1/8-27. NPT Die: 1/8-27. Tap Wrench: M4-M12 3/16-1/2″. T-Type Tap Wrench: M3-M16 1/16-1/4″.Constructed from hardened alloy steel for maximum strength and longevity and can cut materials such as cast iron, steel, aluminum, copper.Supplied in a heavy duty plastic blow molded carrying case for easy transportation, safe storage and quick organization.