Make friends with your dentist - I did, and would up with a box full of used picks. They are great for cleaning dirt out of bb and rear hub threads, and inner corners of dust-caps, and up inside the top knuckle of rear mechs that don't easily come apart, and the pin holes on freewheel lockrings, and the drain holes in fork blades and stays, and, and, and. With a loupe and a bit of careful prep with a grind stone (and some practice) you can re-touch the engraving on aluminium bits,
I don't have the dentist tool but I do have a line scratching tool for metal use, straight and 90 degree bends. I do not, however, us that tool on chrome plated surfaces - too hard and will scratch the chrome. I use the soft metal screwdriver to do the fine cleaning. Seems to offer decent results (this one is rattle can lacquer and latex masked...
