Reddit reviews SEOH Ampule Cracker for 1-4ml Safety Collar 100pk
We found 2 Reddit comments about SEOH Ampule Cracker for 1-4ml Safety Collar 100pk. Here are the top ones, ranked by their Reddit score.
Material is PolypropyleneFits 1-4 ML glass ampulesSafely open AmpulesSpecifically designed to help break open pre-scored glass ampulesSold as 100pk
http://www.amazon.com/SEOH-Ampule-Cracker-safety-collar/dp/B0018BN5N4/
I'd suggest using an 18G filter needle for drawing out of amps. It'll eliminate the possibility of small bits of glass getting pulled into the syringe. (You can probably buy them in quantities less than 1000 from other places.)
Order these: http://www.amazon.com/SEOH-Ampule-Cracker-safety-collar/dp/B0018BN5N4/
I've been using them for about six months. Much easier than the file method.