What is the Karma metal propeller tool/wrench for?

[Rob]

The GoPro Karma came with two wrench-ish bottle-cap looking thingamajigs that appear to be for tightening the propellers. However, the Karma User Manual doesn't mention them, suggests "lightly" screwing the propellers in, and that works just fine.

Anybody know what these are for?

 

[Rob]

I just figured it out and now I feel like an idiot...

 

[dontpanicbobby]

What was it for?

 

[Rob]

To hold the machinery of the motor in place so you can unscrew the prop. I can imagine that when you fly the drone the centrifugal force tightens it beyond belief, making it extremely difficult to unscrew the propeller.

The "U" shape of the wrench fits perfectly on that motor housing which will help tremendously when removing it. I saw a bunch of other drone users who lost their wrenches and then when they needed it... no bueno. So this isn't important when you first use the Karma but putting it in a safe place for future use is a must.