[marki]

Originally Posted by peter_4059

Have you tried these:

http://www.machineryhouse.com.au/L031

I've cut quite a few 0.7 and 0.75mm threads in 6061T6 with them and they seem to work fine if you take it slowly.

Yes Peter I have the 12mm set to suit the lathe. I am not happy with the thread form in the fine pitch's so am going to grind my own. I am finding cobalt tool steel cuts a lot cleaner then the carbide tips as the speeds are too low.

Cheers

Mark