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I own 2 bow saws and 3 older crosscut saws. I plan on trying my hand at sharpening the crosscut saws, but does it make sense with the bow saws? Look like you can get a replacement blade for about $8.

Also, anyone ever replace a bow saw blade with a bone saw blade? I really dont need 2 bow saws and my gerber exchange-a-blade is on its last leg.