Just got the frame back from the powder coater (it sure looks nice); but the sprayer failed to cover the two bosses used by the eccentric locking screws (see photos). I'm thinking I'll use a small diameter drill bit and progressively ream the opening sufficiently to allow me to poke and scrape the threads clean - all w/o messing up the finish around the boss.

Does that seem like the best approach? Any other thoughts or suggestions?