Hello,
Thanks for taking the time to read this.
We have a CNC lathe (HAAS TL2) and we have a job where we need to cut a thread on a part which is a metric M110 x 6mm thread. We've not done any threading before and I'm really struggling to find the right tool-holder/insert to do this.
We have a quick-change toolpost holder for external threading which is a Dorain Tool D35CXA-881. This takes an "on edge" type threading insert which is TNMC 32 NV. We can't seem to find any of these in the UK, let alone ones that will cut the thread we want with the 6mm pitch.
We also have a holder that takes a lie-flat type insert but the holder is 25mm x 25mm and I understand that this is too small to accept a 6mm lie-flat insert?
So we're completely stuck, can anyone offer any advise on how best to do this?
Many thanks
SJB