It depends on what you want out of the gauge. If you want a quick and easy to use gauge that gives you an average of the bore diameter, the Skeets, Baker, & Galazan, will all give you that.

If you want to know out of round and where these anomalies are, none of the above mentioned gauges will accurately measure out of round or dented spots. You would need a real machinists bore gauge that measures across two points.

Last edited by Chuck H; 02/14/14 08:31 AM.