"i used to only ever use threaded cartridges, after finding a bulk pack of non threaded a lot cheaper, i bought this as it works with both types. it worked fairly well for the first few times and didnt cause any problems, then soon after, the plastic thread that has to be screwed to the top piece began cross threading as the thread is not strong enough top cope with amount of pressure it takes to pierce the top of the cartridge. so after wasting about 5 cartridges trying, iam now left with the remaining box, and left with a tool that does not work. i cannot comment on how it copes with threaded cartridges as i never tried. the overall quality is actually good its just a poor design having a weak plastic thread that hugely lets it down."