Machine combination drill taps for ISO metric threads M 4

Drill-Tap: drills through holes and cuts threads up to approx 2 x D in one operation. Generally suitable for materials of unalloyed and alloyed steels up to 700 N/mm², malleable cast, spheroidal cast, copper, brass, Al and Al-alloys, Mg- and zinc alloys, red bronze, Elektron, zinc die-cast.