On Wed, 26 Aug 2009 22:01:24 +0100, Harry Bloomfield
wrote:

T i m explained :
I am tinkering with the idea of building a test jig and a basic bench
grinder could make the ideal platform.

It sounds as if what you need is a variable speed inverter, that way
you would have full speed control.

Whilst that does sound nice it also sounds expensive? ;-(

T i m