Sacrificial Square for Pillar Drill / Drill Press Table - Part 2

In this video I routered an area to install a sacrificial square to use on the pillar drill bed.  It also allowed me to make an recess which could sink the drum sanders into.  This would have been a lot easier to do on a router table and I don't feel like I did a good job but off-screen I added some tiny screws to the corners which allowed me to adjust the inserts fit.  You can also see that I managed to router the tips of the aluminium inserts nuts.  Another alternative would have been to trench cut the board on a mitre or table saw.