On Wed, 26 May 2010 18:40:05 +0200, "Steve Lusardi"
wrote:

My goodness! What's wrong with using a machinist center square. This thing should be in everyone's tool box or chuck it up in a 4
jaw, eliminate runout and mark with your tailstock. I can't believe you are asking the question.
Steve
Junior was so impressed with the centre head the the next time I was
in HF (Port Huron, Mi) I invested $6.99 in their three head square,
took the protractor head for me and gave him the rest!
Gerry :-)}
London, Canada