If you have any diabetic friends grab a couple of needles off them and then start flicking the dirt off... Or if you have any welder friends get a couple of short lengths ( 4 inches is
fine ) of stainless Tig welding rods... Grind one end to a
sharp point and the other to a
sharp chisle blade... I find these to be the best
tools for cleaning...
With a steady hand and a
glass of decent scotch whiskey,
pick at the dirt, only with upwards motions...be gentle, both with the picking and with the scotch!
A binocular microscope is ideal, but hardly easy on a
budget... But illuminated magnifying glasses with a 4" lens are
cheap and wide enough to give you stereo vision...
Great
work so far!!!