Has anyone used one of these? I was helping a buddy this weekend and he showed me a video of a guy using one, but I can't find much info - this is about it... https://www.wurthlac.com/storefront/...c/prodET2.html

This really seems like a superior way to edge sand, to me. Leave each edge say a 32nd oversize and sand it dead square and parallel. There is a similar product here...
https://woodworker.com/cgi-bin/FULLP...PARTNUM=95-430

Thoughts? The Woodtek one is $37 and discs are $7 each - you have to set up an account to see the actual Edgetech price.

JP