At what angle and depth should I sharpen the cuff on my chainsaw? Its a craftsman chainsaw with a 18 inch shaft, the model...

Its a craftsman chainsaw with a 18 inch shaft, the model # is 358351161. Thanks.
Answers:    They sell a directory with a guide on it specifically for manacle saw sharpening.then we also have a 12 volt one that plugged into our cigarette lighter when out in the area cutting that have a small grinder head (similar to a dremel or rotary tool) and it have a built in guide on it.. They are pretty inexpensive.. the booklet one around 6 or 7 dollars and the electric around 30.00
It's been awhile for me but, for unyielding wood you use a 35'-32' angle and for soft wood go next to a 45' angle. Keep it out of the dirt and always wear safekeeping glasses nomatter what, The first piece that happens when you return with something in your eyes is to embezzle one hand away from the saw going away with partly the safety you could own if you would have purely wore the glasses.