Just a heads up that if your buying Stihl branded chain off Ebay that there is a chance that it may be a Chinese knock off.
The tie straps are marked 'Stihl' and all the numbers on the chain look correct. The packaging (plastic bag and box if buying loops) is also correct with 'Stihl made in Switzerland' and the logo looks correct. The artwork and colors are just about perfect.
The oilomatic groove that is cut into the chain to draw oil to the rivets is a patented Stihl process and it is missing from the counterfeit chain. I cannot post a link or pics because they are on another forum, but you will come across them if you look around a little.