I'm building a router table and I'm using 2 sheets of mdf that have been glued together for the top. My plan was to cut the hole for the insert by using my plunge router with a 1/2" bit at the corners and then finish the cut with my shiny new Bosch jigsaw. My problem is that the mdf is 1 1/2" thick and my 1/2" bit only as a 1 1/4" cutting depth capacity. Can I make the 1 1/4" cuts and then lower the bit in the router to expose more of the bit and finish the cuts? Is there a better way to do this? Thanks!!