A credit card-sized screw hex and diameter gauge.

Also included a cm and inch ruler, an arrow for the direction of opening screws, and a hole for keychain ring.

I mostly use those types of screws so I make this for trainees in order to teach them how to find a curtain screw.

In sore of the pictures I used ironing and or filed it by hand.

Note: the sizes refer to the hex size that the thighing tool uses.

I hope you'll like it :)