Easily and Permanently Etch Your Tools

Make a strong solution of table salt and water, then break out your car battery charger or jump box.

Attach your positive (red) lead to the part you are etching. The negative (black) lead is your working end that will hold your cotton ball (the etching head).

Throw a few cotton balls in your container of salt water. Pick one out, squeeze half the water out and clip it into the jaws of the negative lead.

Power up your power source and lightly press the salt water soaked cotton ball on the the stencil for a few seconds at a time. You should hear sizzling, see bubbling and steam. The cotton ball will begin to turn dark. This means it is working! Dont hold it too long. This will make heat that could dislodge your stencil. Then you're in trouble.