My drone did not come with a hex/allen key.   Does anyone know what size is needed for the body of the drone?   

I have tons of them, but none of them fit.

Have you tried with a set of metric wrenches?

I have a bunch of metric as well as standard.     Nothing matches yet.      

777Brad Posted at 4-6 09:58
I have a bunch of metric as well as standard.     Nothing matches yet.

1.5mm seems to be the right one
Yes i confirmed, M1.6 and M2 have both 1.5 CHC head :



CHC.pdf (hpceurope.com)

If the key does not fit, do not hesitate to use this kind of precision instrument:
https://www.boschtools.com/us/en ... s-bh2760vc-34552-p/

Maybe your allen key is broken. The 1.5 aged very badly. It's the one I replace the most.

Hi there. Thank you for reaching out. If you are referring to the DJI FPV Drone, The hex screwdriver for the DJI FPV combo is H1.5, and the screwdriver for the DJI FPV drone arm bracers is H2.0. Hope this helps. Thank you for your valued support.