Why does a sharpened hacksaw cut crooked or sideways. 2 useful homemade products from an old hacksaw

All craftsmen still use one of the oldest instruments. A hacksaw (carpentry tool) is indispensable. It is convenient to cut wood, plastic, metal, aerated concrete and other materials.

The larger the size of the teeth, the faster the sawing work, but the quality of the cut will not be ideal, rough. Fine teeth make the cut better, but the work will take longer. As for the handle, it is best to buy with a rubberized handle.

Some people throw away old saws that are difficult to restore. Others make new useful things out of them to be repaired.

Homemade products from an old hacksaw

1. For example, you can make a utility cleaver knife. It will be indispensable for hiking in the forest, outdoor recreation. The shape of the knife is cut out with a grinder, the canvas is cleaned from rust.

2 holes are drilled where the handle is to secure the wood lining.

2. I saw a friend make a special tool out of a hacksaw. He was then engaged in house renovation (insulation). I cut off the excess part with a grinder.

Sharpened on the machine to the desired sharpness. Then he cut the insulation with this knife. The store sells special knives for this job.

But why buy when you can do better and you don’t need to spend money.

This knife will also be good for cutting styrofoam, styrofoam.

Any cutting tool must be sharp. In the process of work, the teeth are grinded and dull. It is bad to cut with such a saw, it goes away from the marked line. Often the hacksaw wedges, clamps in the cut.

New hacksaw does not cut

A newly bought hacksaw also does not cut well. The reason is that saws are made by automatic machines. The automatic machines have not yet learned how to sharpen the teeth correctly. On sale there are saws with set teeth and sharpening. They are ready to go. However, the teeth cannot be re-sharpened later, and the setting cannot be done differently.

A sharpened hacksaw (sharp teeth) does not cut well

What is the reason and what to do?

First - uneven tooth height. One tooth is higher, the other is lower. Those tines that are higher drive the tree and prevent others from working efficiently. Simply put, they take over all the work.

The second frequent cause - burrs. Burrs appear after sharpening on a machine or file. Gently touch the teeth with your hands, and you will feel. They must be removed. But how? It turns out that everything is simple. Take a whetstone (coarse grain) and rub over all the teeth. Then hold a bar with fine grain over a hacksaw (teeth). Burrs are removed from both sides. Once or twice, three times you will work with the saw, it will rub in and will cut like clockwork.