How do you cut Tungsten Rods????

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Original poster: "Daniel McCauley by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

I'm lost.  I've been trying to cut my 2% thoriated Tungsten (1/8" Dia) rods
down to one inch pieces which I can use for my electrodes in my SRSG,
however nothing I try seems to work.  So far I've tried three different
types of hack saws, and a band saw with no luck.  Doesn't even scratch the
stuff it seems.

Any help appreciated.

Thanks
Dan