Tough carbon steel tap and die set for cleaning and cutting internal/external threads. Includes Bar type and 'T' type tap wrenches, die handle, screwdriver, screw pitch gauge, 16 metric taps and 16 metric dies: M3x0.5, M3x0.6, M4x0.7, M4x0.75, M5x0.8, M5x0.9, M6x0.75, M6x1, M7x0.75, M7x1, M8x1, M8x1.25, M10x1.25, M10x1.5, M12x1.5, M12x1.75; 1/8" NPT die and 1/8" NPT tap in storage case.