The only tooling that runs at high RPM is the diamond finger bits for trimming the edge and cutting out sinks or big ovals and curves on granite slabs the rest of the profiiling tools run around 5-8K. I don't need anything over 15K. I found another machine that uses a hydraulic head:
http://www.ghines.com/systar.html
This one is direct drive and goes up to 7k, I could live with that.
I emailed the company asking how much a replacement head will cost and a lady replied asking if I was going to use it to make something...DUH..of course
They probably had a few peps asking or something.
Do you think they are using a regular oil motor or is it something special?
Thanks