I went to autozone, sears, home depot...
None of them have a hex key bigger than 10mm.

Any other local places I might find this key (California) ? I need it to do the rear diff fluid. Or any other ideas to makeshift something?

Thanks!

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k

I doubt it. 14mm hex sockets (and it's 1/2" drive at that size) are available, but it's more of a tool truck (Snap On, Matco) type item, and they might have to order it anyway. Biggest thing I found at Sears was a 1/2" hex key, and that's a bit smaller than 13mm, so probably not useful to you for that application.

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Erich Loepke
2010 Ford Focus
Currently Benz-less

I would try NAPA or Car Quest. I got a set of 1/2" drive bits from a Car Quest store, but it was pricey and they had to order it. About $80, if I recall correctly.

14mm is very, very close to 9/16".

What you want is a Hex socket. Sears and NAPA should have them in stock. If not and you don't want to pay Snap-on $$$ try to find a S-K dealer. Good luck.

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2dieseljohn
1979 300sd (283,000+) Road Trips
1983 240D 4-speed (350,000+) Daily Driver
1967 E-TypeS1 in bits and pieces

I feel your pain man.

I drove around and couldn't find that darn hex key either.

BUT much to my luck my Autozone actually had the sockets! They came in a 1/2inch drive and I didn't have the adapter for it.

Try NAPA or Carquest. You might have some luck there. Also if you give up the internet can yield some help as well.

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-Typos courtesy of my mobile phone.

They do around here also.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Yeah that makes sense.

Did you call the store? I find that when I call them they're very lazy and never really look. From experience working in retail I don't they're looking really hard.

Go to your nearest Autozone and see if you can find them. They should stock them.

__________________
-Typos courtesy of my mobile phone.

What I did was I got a coupling nut (the long kind for coupling threaded rod together). I got one that used a 9/16" wrench. I don't remember the thread size. I just stuck that in the 14mm allen bolt and used a 9/16" wrench or socket on it.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Good thinking!
I like improvising to get the job done when neccesary.

A 3/8" screw or nut usually takes a 9/16" wrench.

You were looking in the wrong place, autozone sells a "differential drain plug set" for like $8, it has a 12mm, 14mm and 16mm allen key socket in it. Its very well made, I've used mine about 7-8 times now with 0 issues. It is 1/2" drive.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I managed to find a set at Harbor Freight for $14.99. It had 6-10mm, 12, 14, and 17. Not too bad. Did have to drive quite a way to the nearest one though...

Worked great!

__________________
2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k

GOt a set of four at Vatozone I think cheap

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1972 W115 220D/8 SLS, Coffman Starter "Ümläüt"

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I can't say that I'm sorry for paying $80 for a set of S-K bits, but of course they are available a lot cheaper.