The question of what the perfect edge angle seems to be a never ending debate. This video by no means covers it all but hopefully gets the point across that there is more to it that just the sharpening angle.

Everything from steel hardness, edge shape, bevel angle, weight, leverage and bit thickness effect how an axe will cut. Even things like soft or hard wood and ambient temperature will change how an axe works. Not only that but there are specialty grinds and circumstances that require sharpening an a certain way.

In conclusion there is no one grind fits all solution. This is something you need to be able to modify on the fly to something that will work for your situation.

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