"bob prohaska" wrote in message
news
...
If I just hammered a pair of flats on a 7/8" ID tube it _might_
work, but
any wrench I can make will be a worse fit and weaker than the worst
wrench
I'm likely to buy. If I damage the valve it'll mean taking out tile,
that could easily turn into a bathroom remodel 8-|


If you make a socket by milling a 3/4" slot in the end of round stock,
there's no need to match the 7/8" circle at the ends, the slot can
just be longer.