Finger Nut Holder
For Nut M3 and M4
For Nut M5 and M6
For Nut M2,5 and M2
For Nut M1,6
To hold the mother in hard-to-reach places
Put the nut in holder and then stick it on the finger
All in one M1,6 - M6
The author hasn't provided the model origin yet.