The machine tap consists of heavy-duty high-speed steel. For through threads and bottoming threads in unalloyed steels up to a strength of 800 N/mm², malleable.The thread is cut in one operation.
The Hand tap consists of heavy-duty high-speed steel.
For through threads and bottoming threads in unalloyed and low-alloyed steels up to a strength of 800 N/mm², malleable cast iron and non-ferrous...