Lathe Tool Height Setter

I used a 25mm level bubble from a cheap Dollar Tree level. I designed the cutout for the bubble to not require any supports though you need to ensure the tapered side of the cut out is on the top side. My bubble was press fit no glue needed but a drop or two of super glue at bottom of cutout before installing wouldn't hurt but I would test fit first.

Hole is for hanging up somewhere.