Lin, Using a steel block with the different sized holes (a dapping
block) does not cause the silver to stick because the block is so
large compared to the little bits of silver you are using. It is
like a big heat-sink and thesilver balls just roll up the sides and
back down creating a very smooth surface. You do have to keep your
dapping block clean but the finish is usually so nice and smooth all
it takes is a little wipe with a clean rag.
Here is a brass dapping block on eBay (). I have never used
brass, but would imagine it would be good for yellow metals, don't
know about silver. There are steel blocks available on eBay as well.
I usually don't have any problems with the tools I have bought from
eBay, and they usually come with a money back guaranty.
Adios & g'day
<edit* ton>Ebay link Removed</edit ton>