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Anyone know what type of Snap-on wrench is this?

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In My Garage

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Jul 28, 2011
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315
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ON
Looks like an extension used during torquing.

I made one like it where I could not get a torque wrench in.

Modified%20Engine%20Drain%20Plug%20Tool%20-%203-L.jpg
 
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RegeSullivan

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Mar 30, 2014
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Canonsburg Pennsylvania (South of Pittsburgh)
Thanks, but I am pretty sure it is an early Snap-On tool. The amazing gentleman that owned it was a machinist that worked for Packard then later National Torch Tip (NTT), he trained by his father who came here from Scotland in the 1880's to work in Pittsburgh where many new types of steel were being developed.
 
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3baygarage

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Sep 1, 2013
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SW Florida/from Buffalo,NY
Why is it called that? Is a hammer used to strike it?

Are both ends a welded-on socket?

I think the sockets were pressed on and possibly welded down in the center of the socket. Not sure if they were meant to be hammered with or named for the shape. Honestly I didn’t know hammer head was the actual name Snap On called them but it certainly is.

After some research in the Collecting Snap On catalogs, I think they were first marketed in 1927.

-1927, part of the Ferret 3/8 socket set, which included just two wrenches 7/16x 1/2 and 9/16x 5/8.

-1928-1931, now three wrenches listed. 7/16x1/2, 9/16x5/8, 11/16x3/4.

- 1932-1938, only one wrench available. 9/16 x 5/8.


That’s what I found with the catalogs available on the site. What a great resource as always.
 
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crankshaftdan II

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Feb 25, 2009
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Milwaukee, burbs.
My grandad had a set of 5 or 6 of these and this is the only survivor. I'd also be interested to know its age.20180523_113420.jpeg20180523_113401.jpg

Sent from my SM-N950U using Tapatalk

New posting from a older thread--found these and the top one is s/o stamped 5/8 version--other two don't have any marks except knurled handles. The s/o has a 6 or 9 stamped on top-so might be 1926 05 29 mfg. date. Since trhese are all singles, maybe they made both versions for whatever application and your $$$ could afford at the time?
 

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