Your shop isn't called on to mass produce threads each and every day? Why not utilize the most versatile thread mill available? These general purpose single profile tools will allow you to create any TPI within the recommended range for a given size. You utilize circular interpolation settings on your three axis machine to create the TPI you need for prototypes, short runs and in shops where you never know what the next job (or thread) will be. You give up some speed, but you gain versatility. The perfect "save the day" tool for your circumstances.