Beat me to it.
I was in the garage measuring when you posted.
I have both, (the 1" on the smaller one appears to be slightly smaller. Need to check some actual spark plugs.)
I have not seen any other sizes, nor any other size of the V-RAY.
There are a couple of BG aircraft plug wrenches around, and a recent stamped CHAMPION seen.
Anyone know of any other spark plug wrenches made by/for a spark plug company?
See lots of wrenches marked by application, like auto or motorcycle, but few marked with plug manufacturers.