A simple, easy to print keychain adjustable wrench. Made of only three parts, with generous tolerancing yet still retaining great functionality, it is easy to customize with colors or scaling it up or down (Smallest I have managed to print it is 40%).

 At 100% scale, the jaws open comfortably to ~15mm (Over ½ Inch). Printing 2 or more sets of the wrenches at once means its easy to swap colors between the sets (See the attached photos). I have included a printing profile for an A1 mini, using the standard Bambu Lab PLA Basic, but I have printed these in the past with PETG for a bit more resilient use case.

 The round thumbscrew can be easily ‘popped’ into the main frame, with the upper sliding jaw the pressed and tightened in.

1) Line up the body over the nut.

2) Press the body down so the nut 'snaps' in.

3) Insert the top jaw, thread first,, with the jaws of it and the body facing the same direction.