tap and die set?

Thanks for the schooling B. I have sold a lot of tap and die sets in the last 20 years but just the high speed steel sets made by Hanson. They are a good general purpose set but I do have problems with customers that use them on stainless or use them as thread chasers. Hand tapping takes patience and some common sense. I like to cut and back out the tap to clear the shavings. When I was a screw machine operator years ago we would thread a thousand pieces with the same tap. The spindle speed and feed rate were correct and there was plenty of coolant to cool and lubricate. Thanks for your expertise. toolman