After the zinc is gone, perhaps.

One more reason for dropping the shavings before stuffing dust through the
impeller.

Question, isn't duct tape good enough, that folks use sheet metal screws?

wrote in message
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On 12 Jul 2004 21:50:11 -0700, (Joe Emenaker) wrote:


wouldn't metal duct (or more likely the sheet metal screws) present a
lot more opportunities for bits of hard stuff like chips of metal or
pebbles from the shop floor to strike sparks? of course the big one is
still gonna be the impeller blades themselves....