I need to change out my FS on my X5 FES and after copious heating of the bolts and Arnie Shwarzenegger like amounts of physical force with high quality hex driver the little sucker just won't turn one bit.

Someone here suggested the Align Feathering shaft wrench, and I thought YES that's what I need, so I ordered this one, http://arkrc.com.au/hot00004-feathering-shaft-wrench/
Which someone here said is the correct size. One end for a 450 and the other for a 500 size heli. The problem is that there is no way that it will fit inside the blade holders to allow you to get to the feathering shaft bolts, also the 450 end will not let me fit into any of my 450 heli's balde holders.

What The **** is going on here, am I missing something? I'm not a mechanic, and I'm usually pretty smart but I feel like a complete moron with this tool in hand and not being able to work out how to use it.

Suggestions thanks, and be kind

regards,

Phil