(WTB) 40mm socket. Where to buy?

[Blufires]

I've tried everywhere I can think of in Brisbane, and everybody says they don't sell 40mm sockets. They only have 38mm and 41mm because those sizes overlap with imperial. I bought a 41mm socket from Supercheap Auto which fit well enough onto the nut for my Citroen C5's wheel bearing, but because it was an impact socket, the wall thickness was too big so it wouldn't fit into the wheel hub.

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So does anyone have, or know where to buy, a non-impact 40mm socket?

[seasink]

Hard to find in 1/2" drive, but 40mm is a standard item with 3/4" drive. All the usual tool places should have one.

You may need to also obtain a reducer from 3/4" back to whatever your handle takes. They are easily found too.

My American ratchet handle takes multiple size drives by pushing the middle out, but it wasn't cheap.

[DoubleChevron]

https://www.ebay.com.au/sch/i.html?_...+impact+socket

these days this sort of stuff is easy with ebay

[Roger Wilkinson]

Are you sure it is 40mm? 40mm is not a standard metric size in any of the standards I know. 41mm is the standard hex size for 27mm threads in both the German standard DIN and ISO 272. In the old French standard from 1930 38mm is the standard hex for 24mm threads and 42mm for 27mm threads. If it really is 40mm you might find a 1-9/16" socket fits but it might be a little tight. Otherwise, if you have a mate with a lathe just turn down the wall of the socket you have a bit. Or even just attack it with a grinder if you're desperate. I very much doubt you will find a socket that size in 1/2" drive.

Roger

[seasink]

You can buy 40mmx1/2" but they aren't likely to be on the shelf. 40mmx3/4" is common.

[bowie]

Try a motorbike shop. That nearly sounds like a rear axle nut size.

[racing405]

Just find TTI, they will have it. Any decent engineering supply shop will have it or get it. I'm also doubting it is really 40mm. What are you working on?