Socket set sizes

This topic has 4 replies, 3 voices, and was last updated 8 May 2022 at 11:37 by Howard Lewis.

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7 May 2022 at 20:09 #597358
Stephen Follows
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@stephenfollows82099
I have some sockets that were given to me. I thought they were AF sizes but they're not. The 7/16" fits a 1/4" whitworth nut. (This is the only nut size I have that fits one of the sockets). I cannot find any charts that gives 1/4"Whit = 7/16" something. Any Ideas?
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7 May 2022 at 20:09 #28697
Stephen Follows
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@stephenfollows82099
Cannot identify sockets
7 May 2022 at 20:18 #597359
Mike Poole
Participant
@mikepoole82104
1/4 Whit head size is .445” , 7/16 AF is .4373” and 11mm AF is .433”. They can often fit each other if the tolerance on socket and nut are not too tight.

Mike
7 May 2022 at 20:40 #597362
Stephen Follows
Participant
@stephenfollows82099
Looking at them again I think they're probably AF. I have a mixed set with some missing. Think a previous owner must have used the box for a lot of loose sockets he had! I have BSW, metric and AF in one box.
8 May 2022 at 11:37 #597420
Howard Lewis
Participant
@howardlewis46836
Are the sockets too badly rusted for any identification marks to be visible?

Stating the painfully obvious, using the wrong socket to slacken a hexagon fastener, which is very tight, can result in the corners being damaged or removed. The socket might even split!

Depending up on the age of the sockets, if of recent vintage, they might be Metrinch or Flank Drive sockets, (identifiable by the "flats" not being, but curved ).

Metrinch sockets and ring spanners will drive, Whit, AF or Metric fasteners, sometimes where a conventional socket of that type and size will not.

Once you have identified each socket, accurately, it may be worth engraving each one to clarify the size and application

Howard
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Socket set sizes

Socket set sizes

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