It is a magnitude more stable than the wall thickness gauges available in the market place because of it great width as you will see in the photos below the average wall thickness gauge base is in fact too narrow and the user needs to hold the gauge base stable while using it. Of course you can have a narrow base if you increase the thickness of the steel (or cast iron) to a more heavy one.

https://www.hallowellco.com/barrel_wall_thickness_guage.htm

Last edited by bushveld; 04/26/23 11:13 AM.