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Odd sized strong bar

Is this just a mistake?

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Plasma18/06/2019 08:54:57
274 forum posts
38 photos

Hi all,

I bought what on the face of it is a 1/4 drive strong bar but when received will not fit my sockets.

It 6.99mm across the square so near on 9/32nds.

Is it just a poorly made quarter drive or is there some obscure 9/32 drive socket set out there?

Regards Mick

Plasma18/06/2019 08:57:38
274 forum posts
38 photos

Here is the item, any thoughts please.

20190618_085531.jpg

Brian G18/06/2019 09:10:58
481 forum posts
9 photos

A quick google shows that you have a 1940s US made Plomb "Wright Field" 9/32" drive flex handle. There is an article on them here Alloy Artifacts

I wonder if the arrow is the US military's equivalent of our "crow's foot"?

Brian

Edit:  Snap-on also made 9/16 tools https://www.collectingsnapon.com/index.php?page=socket_sets/C9-32inch/9-32%20intro

Edited By Brian G on 18/06/2019 09:16:49

Hopper18/06/2019 09:50:52
avatar
3651 forum posts
72 photos

The range and depth of knowledge on this forum just never ceases to amaze.

larry phelan 118/06/2019 10:31:38
433 forum posts
11 photos

Hopper, YOU AINT SEEN NOTHING YET !!

No matter what the question, someone here has the answer.

Ian S C18/06/2019 14:43:49
avatar
7382 forum posts
230 photos

A case of you buy our strong arm, you buy our sockets.

Ian S C

Vic18/06/2019 17:28:25
2101 forum posts
10 photos

I’m still surprised the French don’t use 10mm and 15mm drives! cheeky

Ian S C19/06/2019 12:43:44
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7382 forum posts
230 photos

Some of the 1/4" drives seem to be nearer to 6 mm, the sockets seem OK, just the drivers are a bit sloppy.

Ian S C

paul rushmer19/06/2019 13:07:35
77 forum posts
10 photos

Hi

Some where I have a set bought from Wistons many years a go, Interestingly this had an od 1/4 drive socket in it that fitted Meccano square nuts.

Martin Hamilton 119/06/2019 13:56:43
97 forum posts
Posted by paul rushmer on 19/06/2019 13:07:35:

Hi

Some where I have a set bought from Wistons many years a go, Interestingly this had an od 1/4 drive socket in it that fitted Meccano square nuts.

Ah Wistons see my cat, those were the days. They used to sell some great items @ very good prices, really missed them when they shut up shop.

ega19/06/2019 14:22:57
1179 forum posts
97 photos

Strong bar or flexible handle? On reflection perhaps the former name (new to me) is a better one.

Plasma19/06/2019 15:59:04
274 forum posts
38 photos

I have always known the tool as a strong bar or breaker bar from my motor vehicle engineering days.

Flexible handle fits nicely too but the ones I was using were 1/2 drive and 18 to 24 inches long so not really a handle.

It was very satisfying to crack the wheel nuts with one, using the inertia of the wheel to exert a high torque on the nut and free it. Sort of spin the wheel clock wise then pull up on the strong bar and arrest the spin suddenly. Hard to describe but very effective.

Mick

Bazyle19/06/2019 18:08:49
avatar
4582 forum posts
185 photos

I wouldn't call anything less than 2ft long a breaker bar but I see Snapon call a mere 15inch one thus. I would call it a swivel joint handle.

Vic19/06/2019 18:50:50
2101 forum posts
10 photos

Yes agreed. The 1/2” drive Britool breaker bar I bought for tight wheel nuts when I was a mechanic is at least 20” long and Snap-On made even longer ones. Anything in 1/4” or even 3/8” drive is hardly a breaker bar in my opinion.

Neil Wyatt19/06/2019 19:26:30
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Moderator
16076 forum posts
675 photos
73 articles

Supposed to be cadmium plated according to the link.

Yours looks like the plating has been stripped to bares steel. I hope the seller remains in good health...

Neil

AJW19/06/2019 21:54:47
avatar
270 forum posts
117 photos

I've got one exactly the same!

It wouldn't fit anything, but it does now as I have made it fit! Just take a suitable amount off two faces.

Alan

Howard Lewis19/06/2019 22:09:49
2035 forum posts
2 photos

I used to remove / refit the sump plugs on our Renault cars using a 3/8 square ratchet and extension, It was a slightly loose fit in the 10 mm square socket of the plug, but worked without problems.

Possibly the Continentals have their own standards for socket drives, (although they use BSP threads on water fittings, calling them "Gas" )

Or a similar strategy to that of Ford in needing a 7 mm Allen key for the calliper retaining bolts on some models?

Bosch used a triangular head on the plugs retaining the governor shaft on the EPVE injection pump. Guess the only place where you buy an expensive triangular socket?

Similarly, Japanese manufacturers of "cassette" injection pumps used five sided heads on their retaining bolts!

Howard

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