Gunsmithing hammer and lathe bit height gauge

The goal was a handle big enough I could easily hold on to it but get into small places.  I have used it several times and like the size.  Little things like this is good to help my skills. 

This is a cool tool I learned about on youtube.  Works great.  The top edge is exact center of the chuck, so when you put in a new tool just match the lathe tool height to the top edge of the height gauge.  The bit will be perfect every time.