“Chrome” edges around the “wheel well”.

[Snake45]

Once-common "school" compasses used to be able to hold an Xacto knife. I've done it before to cut circles. (I might have had to wrap the handle in masking tape to keep it from slipping, I don't remember.)  But I keep losing the stupid compasses after I'd need one, buy one, and use it for what I needed. Last one I bought had a politically correct "safe" plastic point instead of metal and was completely useless for cutting plastic.

Oh well. Somewhere in the Snakepit I've got two or three "good" compasses waiting to be found--sometime.