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9mm Wrench

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Sal Bandini

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Aug 30, 2012
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994
Isn't 15 common for non quick release bike wheel hub nuts?

I'd love to give TOPTUL sockets a try but they skip so many sizes (at least from what I see at cryer)

Meh, likely a department store bike. Adjustable wrench is good enough. :)
 

kjdhawkhill

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Jan 19, 2015
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Flyover state #4
yes strangely derailleur cable pinch bolts are almost always 9mm when they’re a traditional nut type. Most newer ones now on non-department store bikes take a 5mm hex, but almost any old bike-boom “10 speed” out there requires a 9mm on the derailleurs.

I’ve always wondered why but never figured it out.
This isn't exactly a department store bike, but it is a 1x7 with gripshift with 20" wheels... I'm sure it retailed for way more than anything we'd find in a Walmart or Target, but saving money on what the spec-sheet basically said was a "going to break it part" probably was still right call.
I can't even imagine buying a set of wrenches or sockets that skips any size for any reason. ....
Yeah, 9mm seems like a weird spot to skip in a set.

I use 15 almost daily.
Well hell, I barely use my Hex three-way every time there's something to do on my bikes. You must actually work with the tools for a living?
 

Sal Bandini

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Aug 30, 2012
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994
15mm nut for $2000 Campagnolo track bike front(only!) wheel. :)

7765_z_BORAultra80Pista-MOZZOant-2017.jpg
touché

My pliers wrench would take that off easy peasy :)

I'm guessing anyone with $2,000 wheel and track bike either has a mechanic do all of the work or owns every Park tool, including the 15 mm combi wrench and 15 mm cone wrench.
 

VolvoRyan

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Dec 29, 2019
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Kentuckiana, USA
I can't even imagine buying a set of wrenches or sockets that skips any size for any reason. VW guy and yes, I have used my 9mm tools more than a few times. Anyone/company that sells sets that skip 15 are not in the tool business, they are in the money making business. I use 15 almost daily.


Skips are fine above.... say..... 24mm. Things get expensive up there, and there are a lot of sizes you just don't need... depending on what you're working on.

That said, as another Euro guy, my most expensive tools are in sizes like 9mm and 11mm to deal with brakes. The transmission lines use 15mm flare fittings. I find myself going straight to Snap-On for some of those less common sizes.

-Ryan
 

kjdhawkhill

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Jan 19, 2015
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Flyover state #4
Me:
So yeah, I'll get a 9mm double ended wrench in my stocking next year.

If you are going to buy a 9mm make it a flare nut wrench. Might as well buy an 11 while you're at it, your front bleeder screws are probably 11mm.
You're talking about cars, right? (replying to someone else, right?)

I can't find any reference to Sram or Shimano bleeding requiring a 9 or 11 anything... And fronts and rears are almost always identical, in my experience (other than MTB rotor size).
But brake bleeds are one of only two things I haven't done to my bikes... the other being headset pressing. Neither are complicated, but not worth the time to learn to do right/buy supplies, in my current lifetime.

I think I've paid for 3-4, which would have paid for the bleed kit if they were all compatible kits... But doesn't include the learning curve.

Well, Xxxxxxx Trucking paid for one, but that's not an incident related to wrench sizes.
 

bubinga

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Jul 26, 2014
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Bridgeport Ohio. (Across River From Wheeling WV)
Me:



You're talking about cars, right? (replying to someone else, right?)

I can't find any reference to Sram or Shimano bleeding requiring a 9 or 11 anything... And fronts and rears are almost always identical, in my experience (other than MTB rotor size).
But brake bleeds are one of only two things I haven't done to my bikes... the other being headset pressing. Neither are complicated, but not worth the time to learn to do right/buy supplies, in my current lifetime.

I think I've paid for 3-4, which would have paid for the bleed kit if they were all compatible kits... But doesn't include the learning curve.

Well, Xxxxxxx Trucking paid for one, but that's not an incident related to wrench sizes.
Yeah he was talking about the original posters car.
 
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kjdhawkhill

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Flyover state #4
Yeah he was talking about the original posters car.
Shoot, I thread-dredged through the googles... Its ALL MY FAULT. :dunno:
"Self, 2015KJDHAWKHILL," I should have said to myself, "remember not to post on this thread in 2023..."

I stand by earlier comments that 9mm isn't a size that should be skipped in a 12 wrench set... or whatever size.
 

ecotec

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Oct 5, 2010
Messages
5,415
After reading thru these posts I had to go look at my tools to see if I have a 9 mm and I do, phew!
I counted about 10 9mm wrenches before I stopped looking… and I did not even open up the drawer with all the raised panel Craftsman that I upgraded from.

I noticed that I even have a 9mm Snap-on short pattern wrench. I need about 3 more wrenches to complete the set… but I have a 9mm… that I doubt that I have used. I bet that the other wrenches in the set had chrome loss, owner marks or some other damage… I did not buy them for some reason… I cannot remember…
 
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