-
That's never going to work, the open wrenches are about twice the size he needs.
This set will almost certainly contain the right size, and the offsets are likely to be useful
http://www.amazon.co.uk/Piece-Metric-Midget-Open-Spanner/dp/B0001K9QRC/
-
Bought these as there is a 5.5, 6 and 6.5, one of which I'm hoping will fit.
http://m.ebay.co.uk/itm/391058034820
The reason I posted was I've not come across such an awkward clamp before, wasn't sure if there was some magical tool that makes it make sense.
Guess not
http://pages.ebay.com/link/?nav=item.view&alt=web&id=261791792594