A strange S-K socket

[Wrenchmensch]

I was digging around in an old coffee can full of tossed sheet metal sockets, and found this 9/16"  4V118 S-K* socket for a 1/2" ratchet.  I know there are collectors of S-K sockets, and the ones I've seen have been as good as any. This one, however, has NOT GUARANTEED stamped on it.

Why would anyone have bought this socket?

*Sorry, but I mis-copied the number in the first posting.

Bob W.

[lbgradwell]

Government? War effort?

[rusty]

Ultra thin wall for some special application....

[lauver]

Nice looking old S-K socket.  I run across lots of S-K, but have never seen one like yours in the wild.

[The Penguin]

Its a special socket for Ford connecting rod cap bolts, I have 3-4 of them, ground for clearance so the socket will go to the bottom of the nuts.

[OilyRascal]

Oddly enough, I came across one exactly like it today.............now in a box headed for dimwittedmoose.

[J.A.F.E.]

A lot of specialty sockets are not guaranteed. I have a bunch of carb sockets primarily Snap-on and Plomb  (mostly for jets) that are marked not guaranteed.

The sockets of that general design with that knurled banding design were some of the finest sockets S·K ever made.

[humber2]

Original poster may like to check his quoted part#

Here's my take from the horses mouth.....

[Nolatoolguy]

Very nice socket, love the knurling

[lbgradwell]

Its a special socket for Ford connecting rod cap bolts, I have 3-4 of them, ground for clearance so the socket will go to the bottom of the nuts.

Original poster may like to check his quoted part#

Here's my take from the horses mouth.....

Good call Jack!

[Wrenchmensch]

Mystery solved!  Thanks!