Quote Originally Posted by McCreed View Post
Another good tool for working on pickguards is just a Stanley knife blade held in the hand (without the "knife" part).
It can be used as a scraper and affords a lot of control if you looking to remove a little bit at a time. Actually, you'd be surprised how much material you remove quickly as well. They're good for both fine tuning bevels or heel and vibrato cut-outs.

FWIW, the plain old blade has a plethora of uses doing this kind of work.

[Edit to add: Fine sandpaper used dry then wet will clean up the new edges nicely. You can even use a bit of polishing compound after.]

Like Simon, I was going to suggest a sanding drum on the Dremel for widening the control cavity. Definitely less risk of accidental or incidental damage.

BTW, that first fret is #@#$^ mess! (but you probably knew that already )
+ 1 on cavity adjustment with dremel + sanding drum.
Routers are wonderful labour saving tools but to be safe and protect your workpiece, you have to know exactly what you want to do and jig/ template accordingly.
it is possible to freehand effectively, many here have done so, but I wouldn’t attempt it on your first ride.