Yer welcome Bernie!
I usually run mine at 1100 rpm. Never tried it at higher revs........
Incidentally.........This has great potential.
Not got around to sorting it, yet.
The red trail, is paint from a new carbide knifetool I roughed out, just to try it.....
I had only jammed it onto a 22mm spigot. Will mount it sensibly, and try out properly....... Sometime!
David D