If your asking me, I dont know the answer...but guessing that glass can be much smaller finer...........however the metal fine Ive seen recently is VERY Small...........Didnt see the
bag to give you a grit size ???
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Chuck Sharin
[email protected]
Auburn,WA (30 miles South of Seattle)
70 Camaro R/S Z-28, L-78, R/S SS
69 Camaro COPO "recreation"
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