Thanks to EVILDR, I now have a third single Cam-Loc wrench. Here it is (the top one) along with my other two.

Guess I should assemble a set of these now?

Very nice. The family is growing.

Mongo.

Over the years I've had several.  They are great for knurled and ribbed nuts.  They can also be used for installing studs altho I prefer the double nut system.