The other day I had to clean the gunk out of the pilot holes on a gas
stove.  The very small 1/2"-long pilot jets on this ancient stove have
a hole about the diameter of a human hair.  I had no wire or drill bit
small enough for the job.  After sleeping on it, a picture popped into
my mind of an old large wire brush & paint scraper tool I have in the
storeroom.

The 1" wires on the brush are very fine, yet also very stiff.  I clipped
a strand from the brush, straightened it a bit, and using a needle nose
was able to shove it right through the pilot tubes, clearing the
obstructions.

Then it occurred to me that this might be something useful for clearing
very small bleeds, without enlarging them, hence this post.

Tom Lear
San Francisco, Calif.