I'm getting ready to tile a bathroom, and got an incredible deal on a short lot of marble tile. Problem is, there isn't any matching bullnose available so I'm going to have to cut the bullnose myself. I picked up a brazed diamond router bit for the job, but I'm a little concerned about how abrasive the dust is going to be and what it might do to my nice router. I would prefer to use a router table with a fence, which makes the dust accumulation in the router body much worse.
Is this going to significantly shorten the lifespan of the motor? I'd thought about picking up much less expensive router specifically for this job, but don't know if it would be worthwhile. Anyone done this before or have any thoughts?