Machine taps for ISO metric threads M 8

For through holes with thread depths more than 2 x D. The spiral point causes better chip removal out of the hole in feed direction. The steam-tempered surface reduces cutting edge build-up. Generally usable in iron materials, unalloyed and alloyed steels with a tensil strength up to 1000 N/mm² e.g. heat treatable steels, nitrided steels and case hardened steels, malleable cast iron.