On Wed, 26 Jul 2006 20:20:50 GMT, "Edwin Pawlowski"
wrote:

From the description:
a.. Non-Sparking, Non-Magnetic, Corrosion-Resistant

Non-sparking is fairly cheap - just use beryllium bronze.

However beryllium is toxic, so gets a bad press these days. Now the
material of choice is aluminium bronze, which is an absolute bear to
machine, hence the high price.


Also no-one is buying these out of their own pocket.