Today, car keys are very complicated beasts. They are covered by buttons and equipped with safety transponders, if you lose them unfortunately, it usually costs hundreds of dollars to replace them. However, in the past, the key used to be just a key-a mechanical piece of metal used to move some levers and open a door.Therefore, you can transform the wrench into an old car key If that is what you really want to do.
The concept is simple. Take a 12mm ratchet wrench and shape the flat part into a contour that matches the old car key without any electronic security features. The first step is to cut the shaft and then sand it to match the thickness and width of the original key.
Then draw the outline of the key onto the surface and use Dremel with the cutting disc to create the desired shape. Finally, a caliper is used to mark the channel, slide the key into the keyway, and then machine it with a rotating tool.
The final result of filing and polishing cleanup creates a shiny, attractive ratchet key. Even better, it also does a good job of opening the car.
Similar processing techniques can be used to copy a key from a photo (What I did in 2019 was to prank my friend). Or, 3D printing can even replicate high-security keys well. Video after the break.