--Been there, done that for another guy. Remove table, fasten to
mill table, enlarge hole with endmill, create 1/4" deep 'ledge' for router
base insert. Round corners of insert to match endmill and you're done: no
need to square corners in iron. Stronger, too, that way.

--
"Steamboat Ed" Haas : Whatever happened
Hacking the Trailing Edge! : to Tom Nelson?
www.nmpproducts.com
---Decks a-wash in a sea of words---