DESC: Professional-grade set in special high-carbon alloy steel for excellent strength without brittleness Includes both fine- and coarse-threaded taps and die in larger Metric-sizing M6 to M24 taps and die with thread-pitch from 1.0mm to 3.0mm Adjustable and T-Handle tap wrenches, adustable die wrench, die adapter, screwdriver Complete with rugged custom-fit latched ABS storage and carry case to protect and organize, Manufacturer: Neiko Tools USA