A very quick way to sharpen an old or new hand saw with a tool such as an angle grinder. It will only take you 5-10 minutes for all the teeth of your hacksaw to reach their original sharpness. This sharpening technique is designed exclusively for experienced users, those who have been working with an angle grinder for several days.
Sharpening a saw with a grinder
The first thing you need to do is clamp the saw well. It is better to use two clamps at the edges. During any manipulation, the canvas should not “play”, much less move to the side.
It is advisable to clamp the blade horizontally, parallel to the plane of the workbench.
The saw is old, this is what the unsharpened teeth originally looked like. They cut just as badly.
We install a circle on the grinder with as fine a grain as possible. We start the tool and sharpen each tooth one by one at an angle on one side. First, we sharpen one side of the tooth, then we go in the opposite direction and sharpen the other side of the tooth.
Turn the blade over and sharpen the other side of the saw.
This is what the blade looks like after sharpening.
We check it in real conditions - we cut down a tree.
It cuts perfectly.
The cut is smooth, the structure of the cut does not deteriorate - everything is smooth.
If the saw jams when cutting, you should check the tooth alignment. The thickness of the wiring must be at least twice the thickness of the hacksaw blade.
In total, it took about 5 minutes to sharpen the saw. With no more than 10 preparations.
Do not forget about safety precautions when working with hand-held power tools. The grinder is a particularly dangerous tool with which you need to be especially careful.
If you do not have sufficient experience working with angle grinders, then I recommend that you abandon this technique.
