i have found that when commercial chasing tools are offered for
sale, they still need finishing work. the edges are always to rough
and not smooth.
and commercial stamping tools are usually not very well made either.
i have had to file the imprints down to sharpen the stamping
capability and then re-harden and temper. i have found that these
tools bought commerically are not even properly hardened and
temerped in the 1st place!
therefore, i find it best to make my own stamps and chasing tools.
you can look up this how-to info again in several books, including
my own, "the art and craft of making jewelry". with a little
practice, you will soon be wuite goo dta making your won tools and
will find them much more satisfying to use!
metalliferous does have a very large selection of used chasing tools
with many good ones in there, but you have to go to their store on
46th in NYC in order to look through them for yourself.
i have also found that with many stamps, you have to "rock" the tool
while hammering in order to get the best impression. i make sure to
rock the tool in 4 different directions, setting a hammer blow each
time i rock the tool.