Hi! My name is Fred Carson and I am from Carson's Saw Shop in Eugene, Oregon. I have been sharpening tools over 30 years and I am here with Expert Village. Okay this is a chain saw. We just took the chain saw chain off and we are going to take it over and we are going to sharpen it with a machine. The machine is a nice Italian tool. Got it at 25 degrees and turn it on. Little finger stops here, your angle is here, another angle is up here for the undercut of the grinder wheel. If you don't get things done correctly out in the field, this is the way to do it. Sharpens perfect every time, every tooth. After you go all the way around, you want to flip it over and do the opposite tooth. These chains are cut real nice. After they have been professionally sharpened, they will cut just as well as a brand new chain. Thank you very much.