I don't know but before I made my purchase I saw Todds review of it and his had an Allen key in the spare o ring bag. Both of mine just had the spare orings and the set of spare post screws. I didn't need it to get it built yesterday so all is good but I still sent an email to Vassili asking about it.Wait...An Allen key for what exactly? Are you referring to in case the juice control gets locked up, because it doesn't come with one for that...I assumed it was for the screws to trap wire, but those are flat head it appears
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