Sharpening saw blades by hand is a skill that can save you time and money in the long run. A sharp saw blade will cut more efficiently and cleanly, and it will last longer than a dull blade. There are a few different ways to sharpen saw blades by hand, but the most common method is to use a file.
To sharpen a saw blade by hand, you will need a file, a vise, and a lubricant. First, secure the saw blade in the vise. Then, apply a lubricant to the file and begin filing the teeth of the saw blade. File in the direction of the cutting edge, and use even strokes. Be sure to file all of the teeth on the saw blade, and file them to the same height.