Anyone who plays golf will recognise a 9.4mm or .370" reamer as the one that widens a hosel from taper tip to parallel tip.
Looking for one of these - must be straight shank, i.e. parallel flute. So likely to be a chucking reamer not a hand one, which is usually tapered through-hole.
What are the good stockists in the UK for these kind of engineering tools? Or any other sources?