This is the best site on the web when it comes to service dont even think to go somewhere else! I know as soon as they find the wrench it will be up on the web site,looks like the newer models have a phillips head instead of a hex.Don't give up you wont be sorry.
I know I've sent two or three messages to the tech support same deal,no reply! I'm getting fed up with Walkera I was going to purchase a v120 but I'm having second thoughts may just save a bit longer and purchase an Align or a Blade,(the Master cp does make a good paperweight) Sorry Walkera.
Just had the same problem with them on a blade grip issue- no reply. So I solved my own problem. I found that a 1/16 hex is very close, and an apropriately sized jeweler's screwdriver will work too (which is what I actually used). Let me guess, the screw is really tight, right? It's probably installed with Loctite, just like the blade grip screws. I used a Weller 100W soldering gun, put the tip on the head of the screw, and heated for 10-15 secs. This will soften the Loctite enough to remove the screw. It will feel a little stiff, but it will come out. Clean up residual Loctite from the screw and hole, and use Loctite 242 for reinstall. Allow to cure overnight before use. Hope this helps. If you're interested in any further discussion on WHS, use my e-mail.
Thanks for the input just so you know that the blade grip screws are a 1.5mm hex which should have come with the Mastercp,I need a .6mm very small the set screw is no bigger thana small tick, I just found a .7mm on line and ordered it I may have to sand it a bit but somehow I'll make it work . I'll keep you updated.
Got my wrenches today its not a.6 or a .7 it is a .9 finely an answer!! JUST GOOGLE MICRO TOOLS! now if I just didnt snap the motor wire(I'm a klutz sometimes)! I'll be ordering a new one tomorrow IT will be here by the weekend thanks to WHS