Yeah, just a stripped down table saw tenon jig, but I'd love to have that for just that simplicity. Perfect 90 platform for end drilling on a drill press, eliminating the need to tilt the table and loose the setup. Just unscrew the bar.
A chunk of steel or aluminum angle would cost 4x that at least.

Given your location, it's almost like that place is living 40 years in the past with the prices!