Topic

And now for our next exciting installment:

Obstruction spanners/wrenches.
These were originally for the hard to get at bolts on car door hinges, some of which are a right bugger to get at, but I've found them a life save on various other locations on a car.

First we have the "Crescent" (not the brand but the shape) ring spanner.
Asymmetrical:

Symmetrical:

Symmetrical with ratchet:


Then there's the "S" type:


Even open ended spanners sometimes the smaller sizes are referred to as ignition spanners:
http://www.worldofdraper.co.uk/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/9/19754_7146-8-MM_1.jpg

And there are oddities like this one:

Obviously for a special application, though I've no idea as to what.

If you have a difficult to access nut or bolt, you can of course fabricate your own special spanner to deal with it.
I always keep an eye out at markets for old quality spanners, sockets and socket extension bars which I use to bend and/or cut and weld into the shape I need.

When I bend them I heat the area to be bent with an oxy/acet torch.

Great stuff