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DIY hammer

DIY hammer

The reverse hammer is an indispensable tool for straightening metal. It is often used in car repair shops to smooth dents in car bodies. For example, body parts such as wings, sills, car doors simply cannot be tapped with an ordinary hammer, as they cannot be accessed from the inside. For such purposes, and serves as a reverse hammer.

The principle of its operation is that the working side of the hammer is fixed to a dent on the body (it is simply welded or hooked to special brackets with a hook). Then the weight located on the axis of the hammer hits the base of the handle on its opposite side, thus directing the force of the blow in the right direction and aligning the dent.

To make a hammer you will need:
- A kettlebell weighing 2 kilograms;
- metal rod;
- A pen;
(can be used with a broken power tool: drills, grinders, etc.)
- Drill, with a drill for the diameter of the rod;
- Welding machine.

To begin with, a piece of the rod of the desired length is cut. The surface of the rod should be smooth, without rust and bumps, so that the weight can move freely on it.

Then a washer is welded to one end. It will serve as a stop for the handle:

A through hole is drilled in the handle and it is put on a rod:

On the other side of the handle, a washer is also worn. When the hammer is working, the weight will hit it.

On this side, the washer is also welded, and the seam is cleaned. Now the handle is locked:

Then a hole of the desired diameter is drilled through the weight (under the rod):

The weight is put on a rod. The hammer is ready.

You can weld it to the body as is (budget option) or make a hook under special brackets at its end.
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1 a comment
I would definitely make a thread on the hooks - they may need several (body parts have to be repaired different). And yet, if you use several weights of lower mass, you can adjust the force of the impact.

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