I'm truing up a section of some old Wilsonart flooring so I can inset some repair pieces using lap joints in the floor and repair piece. I need flawlessly parallel pieces. I did a test repair and this setup works like a dream.
Hardest part will be making the cutout in the floor perfectly square.
I glued a teplate to the floor using hot glue. Then I used a 1/4" bit the full depth og the material to make the first cut, then changed my bit to 3/4" to make the lap joint. The repair's corners will be rounded in the floor of course, but I found that with some sandpaper on a block of wood, hand shaping the corners in the repair piece isn't all that hard to do. An $800 repair will save the homeowner from replacing a $9000+ floor.