On 2016-12-15, Thomas Prufer wrote:
On Thu, 15 Dec 2016 14:44:19 +0000 (GMT), "Dave Plowman (News)"
wrote:

see if there is a bike one?

...which is called a "17 mm cone wrench".

In American, it's a cone spanner in English :-)

Come in cheap stamped metal, or better, i.e. Park Tools.

Do bear Dave's "if it's for something not tight" in mind though. Cone
spanners, even the better quality ones, are easily damaged if misused
as standard spanners.
http://www.sheldonbrown.com/tooltips/conewrenches.html

On the other hand a cheap one treated as disposable might be good enough
if it's a one time job, and easier than grinding down a normal spanner.

Alternatively, buy something like:
https://www.amazon.co.uk/Ultra-Thin-.../dp/B00EJDIM8Q
http://www.automotive-toolzone.co.uk...ltra-thin.html