Lol, check some of the other comments, this question has been covered A LOT...
short version is, you can slide a washer underneath to re-clock the screw, or just lift the tool holder off the tool post to tighten it.
cheers!

Quote Originally Posted by albertq View Post
Hi Hersch, Thanks for sharing your tool height adjuster.
With your tool height set precisely, how do you lock the adjusting ring if position of hex lock screw is hidden by tool-post lock handle?
Or do you set the height to the closest 1/2 turn?