I've got a Tele that has standard bridge and neck pu routs. I'm going to give it a modified Brent Mason flavor with a full size neck bucker, strat mid, and keep the standard tele bridge. (So, expanding the neck route and adding a middle, yep.)
I opened a single sized route to a 'bucker with a drill, chisel, and lots of sanding. I marked the depth on the drill bit with tape, "outlined" the new opening with the drill, used the chisel to knock out the chunks, then used the sandpaper to clean it up.
this is so **** punk rock