Mobius 2 wrench to remove lens

[Leo_SF]

I am unable to find the wrench which came with my Mobius 2, is there another tool I can use to remove the lug without buying a 0.9mm wrench?

I am trying to replace the stock lens with the 12mm I bought.

 

[TonyM]

Mobius 1 or 2? I don't remember the Mobius 2 having a set screw. Perhaps the newer models with different lens options have a set screw?

My local reseller in the UK sells the Mobius hex key for £0.99. Perhaps you can find one local to you?