I purchased a 545 in November 2018 as my first chainsaw. I also purchased the Husqvarna sharpening kit for "Pixel" 0.325 narrow kerf.Might have something to do with the design of the depth gauge tool? Specific to this chain? Just guessing.
I bought mine from a German seller on eBay.I've looked all over for the 33 kit. Where did you get it from?