Quote:
Originally Posted by KJohn
True, but I don't tend to smoke them.
(sorry, couldn't resist)
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I don't really know what kind of rollers you have or how you are going to use them. But if you use any graphite shaping tools they can get grainy. Trust me you will know when they need to be reconditioned just by looking at them. Probably scientific or industrial glassblowers would have do that more than most lampworkers.