ok right now i use 18 gauge needles for drawing ,but they tear up the rubber in sealed sterile vials, all the time i find pieces of rubber floating around in my gear, i tried a 23 gauge for drawing and that was like pulling teeth, is there a needle size that draws gear easily but dosent tear up rubber in vials, was thinking a 20 or 21 gauge, but do they tear up vials as well
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