Use of vice is very helpful when sharpening with a file. Diamond hone is used to flatten out side of
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The Best Knife Blog
A hand saw is usually sharpened with a file, but it an exacting job. As the saw cuts on both the forward and back strokes, teeth are sharpened on both sides, (front facing and rear facing), and are offset alternately left and right of center, (called ‘setting’). You could do it yourself with a fine cut triangular file, or a specific saw docoring file, but for best results, it’s better to have it sharpened professionally.
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I agree with Lizard, you can do it but you may also need a file guide to do this. Hard ware stores offer this service and is not expensive. I have try ed this and it is not worth the aggravation.
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Unless you are reasonably experienced at saw sharpening best avoided,the angles the file is held has to be precise and applied to alternate teeth, also the set has to be consonant. Unless the saw is an expensive brand in which case it should be professionally sharpened. Modern saws are reasonably priced and many have toughened teeth which require little on no sharpening, best to buy new.
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What size or kind of sharpening stone or tool do I need for a hand saw?
and other such tools