Ruko Hand Tap Set M DIN 352 HSS Ground with Left-Hand Thread

For through threads and blind hole threads in unalloyed and low alloy steels up to
800 N/mm² strength, malleable cast iron and non-ferrous metals. The thread is tapped in three steps.
3-piece sets: roughing, intermediate, and finishing. Thread: metric DIN ISO 13. Tolerance: ISO 2/6H. Surface
bright. Cut to the left.