[modeleng] Tapered opening on adjustable spanners

A proper adjustable spanner always has the faces tapering inwards slightly 
towards the opening to prevent the spanner from slipping off the thing you 
are tightening/loosening.

Try using your verners to measure the opening of your 'footprints', 'king 
dicks' or 'snap ons'.

A sign of a cheap adjustable or one that's been overloaded is that the 
jaws taper outwards slightly (or greatly) towards the opening.


Yours,


Rich.


On Fri, 19 Jun 2009, Barrie Purslow wrote:

> Whenever I use an adjustable spanner I always make sure the jaws are adjusted 
> to be a snug fit on a hexagon. But why is it that when I remove the spanner 
> from the hex. I cannot get it on again without increasing the jaw spacing?
> Barrie
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