I frequently get some really great tips in the comments section.
This post is based on a tip from Chuckieboy on this post.
|Not a rebar but a plastic rod chosen for its ability to look good in photos.|
I was bemoaning the fact that the groundrods I purchased did not grip the rebar I used for a ground rod. Chuckieboy advised me to flip the half with the threaded holes around.
The package claims it is good for ground rods as skinny as 1/2".
Measurements taken in the exclusive ERJ labs indicates that the clamps will close and secure cylinders as small as 5.56mm or 0.224"