OK then
It seems to be a case of 'Trial and Error' when starting out until you can find that common ground your happy with.

The machine is an OX from Openbuilds and the spindle is a Makita ( RT0700C ) No load speed 10,000-30,000 rpm.

Could you recommend a good supplier of decent cutters here in the UK as my local supplier sells Silverline which is cheap stuff. I want to start cutting with something half decent if I'm to get off to a good start.

Thanks to you both for your help.

Michael
Centurian.