Chemours Opteon YF R-1234yf Piece Top Can Tap (D15439239)

Tool works perfectly fine. I was about to not buy it because of a negayive review. But found out that the person who wrote that review didnt know how to use the tool right.Make sure when you use ot that the treat is counterclockwise, diferent from the 134a.This spin diferent direction to trear it into the can.I had charge 2 cars already with not problem.