
At first, I measured some keys and keyholes to get the right length and height, then I broke the blades, scratched the measured and guessed dimensions on them (the left painting is great for that). At next I grinded them, tested them when I thought that they are ok. If sth. does't fit, it is easy to correct it in this stage...
When they are well, I buffed them at work till they shine like polished chrome in the sun.


Ps.: The small boxes are 5mm away from each other
