Need to cut glass, but don't have a glass cutter? Use a spark plug

If you need to cut any glass, mirror, or even tile, but you don’t have a glass cutter at hand, then this life hack will certainly be useful to you. With which you will learn how to make a homemade glass cutter from a spark plug and use it to cut glass very evenly in one or two pieces.

Cutting glass using a spark plug

So, the first thing we need is absolutely any spark plug from any vehicle.

The insulator of any candle is sintered from very durable ceramics. We place it on an anvil or a piece of steel and break its insulator with a hammer with one blow.

Carefully! Be sure to use safety glasses.
Take a wooden strip, cut it with a knife to the middle, insert the sharpest piece of the split insulator.

To prevent it from flying out, we wrap it with thin wire, thread or tape.

We've got a real glass cutter. We take glass and cut it like a real tool. We use a blade from a hacksaw for metal as a ruler.

Break it apart along the scratch. It would be a good idea to first tap the scratch so that the crack goes deeper.

Such a homemade glass cutter should be enough for a couple of meters of glass, then the insulator fragment can be replaced with another.
Here is such a useful life hack. I hope it is useful to someone.