TheGrave said:
Scratch that and look at this!
https://www.amazon.co.uk/gp/product/B001NYX44G/ref=ox_sc_act_title_2?smid=A3P5ROKL5A1OLE&psc=1
If only we could find an alternative that didn't cost a kidney for a piece of metal...
Problem with ring spanners is you can't always get them onto the thing...
I have a spanners with a flexi head ratchet ring on one end (non-reversing, just turn it round!) and a normal open-ended spanner on the other - one in M8, one in M10.
Like this:
https://www.zoro.co.uk/shop/hand-tools/ratchet-combination/professional-flex-head-ratchet-combination-spanners-metric/f/5260
but I think mine are Halford Professional off eBay.
I don't think I've ever used the M10 one and probably wouldn't need it on exped (because everything is standardized on M8) so having M8 and M10 on the same spanner is probably not that useful. What _would_ be nice would be an open-ended ratchet spanner for those many hangers where the ring doesn't fit...