[Shotimes] Adjusting Belts - Source for Hex Keys?

[Chris Riedl]

	A while back I was told to use a long hex key to adjust the SHO's  
belt tensioners.  For the life of me, I have not been able to find a  
single key or set that will work for that purpose.  I believe I was  
told that they had to be at least 8" long in order to reach the  
tensioners without trouble.  Can anyone confirm this and tell me who  
might carry the right size sets of hex keys, either locally or online  
if they are not able to be found locally.  Am I correct in thinking  
that the tensioners use a 5mm?

Thanks,
Chris