A 37mm 3/8th or 1/2 inch drive socket? Have found 1 in 1.5 inch drive, but would need a new breaker bar, the socket is £25, and I'm only going to need it once… anyone got any ideas?

37mm? Are you sure? It's an odd size. 36mm and 38mm are common, usually associated with 3/4" drive
36mm is available in 1/2" drive but really it's at the upper limit of the driving accessories
(22mm is usually the largest 3/8" drive socket but you wouldn't want 36mm in 3/8" anyway!...)

What's it for/on? ...did you mean 1 7/16" ? (= approx 36.5mm) Readily available in 3/4" drive. Try Cromwell Tools

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'98 M2 Razorback, it's a keeper.

It's for the nut on the stem of the forks on a trike. I've got a 36mm socket that I use for the oil filter on the car and thats too small, I measured across the flats with a vernier and it was 37mm.

The forks aren't great, want to see if I can fit the forks from the bike I'm breaking, so only need to get this 1 nut off once.

Thanks.

I'll have a look in the garage and at work but if I've not got one how about a one inch to 3/4 and a 3/4 to 1/2 inch reducers. You can buy a set off eBay for small change.

Thanks, seems it's a very unusual size. A bloke off another forum has offered me the use of a 3/4 breaker bar, or I may get a set of those reducers you said about. But the socket is the main problem. I'm tight and really don't want to be spending £20+ for a socket I'll never used again.

It's not even very accessible so probably couldn't get an adjustable spanner or stiltson on it either.

Are you sure it isn't 1 7/16 AF (36.5125mm)? If you lived closer you could have borrowed mine.

[sorry Rik, I missed your comment]

And as it is so big, could a 38 be used without damage?

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08 Specialized Langster

I've an 1.5 inch single hex which comes out at 38.2 on my vernier caliper it's a half inch drive. you can borrow it and i'll post it if you want to pay the postage. If the nut is an ally one then a bit of tape round it to stop any marking will make for a good fit........Dave H

I did go out an double check the size, and is definitely measuring exactly 37mm. I did think about trying to put something round it to pack it out to 38mm, but as its the nut that hold the forks on I should imagine itll be pretty tight.

I'll have a word with the fitters and fork truck bloke at work today and see what they've got. If I take the tank off I might even get in there with a stiltson. Thanks for the ideas and offers, I'll get back to you.

Cheers.

If you take the tank off, I be tempted to be a bit brutal and drift it loose with a hammer and chisel. Then when you reassemble, make a new one to a regular size, say 36mm.

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Try doing this to yer fueller...........

Any big truck garages nearby!? ,try it there!

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The sound of a V-twin engine braking is music to my ears!!

...as you've got a 36mm socket already, could you not grind (Dremel?) 0.5 mm off the faces of the nut in situ?

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'98 M2 Razorback, it's a keeper.

...as you've got a 36mm socket already, could you not grind (Dremel?) 0.5 mm off the faces of the nut in situ?

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'98 M2 Razorback, it's a keeper.

There's an echo in here...

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'98 M2 Razorback, it's a keeper.

You may be surprised. The large nuts on the yoke stem aren't generally that tight. They only have to give the bearings a 'nip'

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If your dreams don't scare you, they are not big enough.

Spoke to the fitters, they've got what is basically an adjustable socket. Said they use it a lot as where I work, a lot of the pipework leaks onto the bolts, so the correct size socket never fits. This thing is odd, got 6 plates and a bolt, somehow as you turn the bolt to undo what you want, it tightens onto it, once it's clamped it as tight as it can, it then (hopefully) undoes the nut/bolt.
It looks like something 1 of them has knocked up rather than something they've bought, but they swear it works well. I'll have a go tomorrow.

I did consider trying to grind it down a bit with a dremel, but I doubt I could be that accurate with it, and I can't seem to find my dremel anyway!