Bests & Worsts Reviews from Amazon

This has been my go to sharpener for several years now. It is very easy to use, accurate, and provides sharper than new chains when properly used. There is already a review which provides a link to how to properly use this jig. I chainsaw mill large timber a good bit, and the differing angles of ripping chain leaves one with few choices when it comes to sharpeners. Many saw shops do not sharpen regular chains properly, and I will not even consider dropping off a $60-$100 rip chain for them to obliterate the temper in the cutters and scorers. This jig also fit the bill because when milling, you will often sharpen many many more times in a day than you would simply bucking and felling. I often work in remote areas and the granberg is packable. The bench grinders are fine for some but they're not feasible outside of the shop. The only tip I will leave being I haven't seen it mentioned before is this. I have found that if you set the jig to where the file is oriented to sharpen at a 10 degree downward angle while sharpening the cutter to whatever angle it need be; the chain sharpened in this manner will tend to pull thru the cut more efficiently and reducing operator fatigue as a result. I've sharpened at 0 degrees, which is perpendicular in relation to the bar, for a long time, and my observation is that the 10 degree downward angle produces a slightly more functional and sharper edge.