Oddly marked sockets?

[Outlawmws]

My day for odd stuff today.

I picked up 2 Bonney Sockets today, but the markings make no sense... I also picked up a Proto that is also sort of weird.

The larger Bonney is 15/16 (not marked), and marked WT16, BONNEY, and 1/2

The smaller one is 11/32 (not marked), and marked WT4, BONNEY, and 1/8

Both are 12 pt and 3/8 drive.


The Proto, is a chromed 1/2" drive 6 pt socket, Mod. 5436-H, Marked "Proto USA Professional" but not a size to be seen. I guess Pro's don't need sizes marked?

Any clue why the oddball size markings on the Bonneys?

 

[snapmom]

Prob. whitworth.

 

[trboxman]

I'm guessing whitworth.

 

[garfunkle24]

Yes, Whitworth, They're sized by the bolt shank diameter, not the head.

 

[porphyre]

About half of my metric sockets have odd markings....

 

[Larwyn]

I could probably use some of those on a couple of old Raleigh bicycles that I have. There are some fasteners on these things that I just call "crescent/32'ds".

 

[Outlawmws]

Was just looking up Whitworth on line. pretty bizarre to size a wrench to the shank of a bolt instead of its head...

 

[trboxman]

Those whacky Brits...the also got Lucas, the Prince of Darkness, God of Fire to design electrical systems for them...

 

[Alchymist]

Was just looking up Whitworth on line. pretty bizarre to size a wrench to the shank of a bolt instead of its head...

No worse than SAE bolts with metric heads and Vis a Vis.

 

[davesnothere]

I'm with the whitworth camp, even though I still don't understand how that measuring system works.

 

[bigcaddy]

Those whacky Brits...the also got Lucas, the Prince of Darkness, God of Fire to design electrical systems for them...

So you own a Jaguar too?