How do you file the propriety husqvarna chains

[SawTroll]

Word is that it will work on NK bars.

Woodland makes those on 3003 stihl mount

WoodlandPro Narrow Kerf Bars

#WPNK 16 SS50
#WPNK 18 SS50
#WPNK 20 SS50

Well, at least some regular .325 .050 (like Oregon 20LPX) do work on/with NK bars on many saws, but far from on all - so I guess the final proof is if the new chain works with NK bars on saws where NK bar/20LPX is not working - or preferably that Stihl confirms (claims) that it will work with NK bars (as once defined by Oregon).

I suspect that Stihl rather may want to make their own proprietary "system" though (or pretend that they did), and leave to the costumers to find out what else it is/isn't compatible with. It wouldn't be the first time if they did.

Stihl mount .325 NK bars have been available (a bit on/off though) for a long time (both 3003 and 3005 mount), just not from Stihl themselves.