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# What's a 11/16 wrench in MM???

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# What's a 11/16 wrench in MM???

06-10-10, 12:58 PM
#1
fujiyama
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What's a 11/16 wrench in MM???

Silly question probably, but can anyone tell me what mm cone wrench is needed to equal (or close to, probably a tiny bit smaller) to a 11/16 wrench?

Thanks!
06-10-10, 01:07 PM
#2
JTGraphics
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11/16 = 0.687 5 inch = 17.462 5 millimeter
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06-10-10, 01:10 PM
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va_cyclist
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Let me Google that for you:

http://www.hamuniverse.com/antfrac.html
06-10-10, 01:11 PM
#4
BCRider
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Do the math. 11 divided by (that's what the "/" sign means as well as denoting a fraction) 16 = 0.6875 inch

And there's 25.4 mm in an inch. So 25.4 x 0.6875 = 17.4625 mm's

So it sounds like you need a 17 mm wrench.

The other way would be to measure with a metric ruller across the flats of your 11/16 wrench. Or even to use a metric ruler to measure 11/16 on an imperial ruler.

Any of these options would have been faster than typing this sort of question on the 'net..... Imagination is the first step in prolem solving.
06-10-10, 01:18 PM
#5
JTGraphics
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You will need a to buy the metric wrench if a 17mm is needed thats one of the sizes that is not going to work with a standard size wrench.
Some are so close they are ok like a 11mm = 7/16 or a 13mm = 1/2 and 14mm = 9/16 as well as some others but the one your asking about has no equivalent.
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Last edited by JTGraphics; 06-10-10 at 03:57 PM.
06-10-10, 01:56 PM
#6
FBinNY
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For those who can't or won't think, here's a site for converting measurements.

It was really hard to find, I searched "convert inch to metric" in google and it went straight there.

Forums are great places to get answers to unique problems, but you shouldn't expect others to do what you could so easily do yourself.
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06-10-10, 02:04 PM
#7
mike_s
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Google is great for this kind of thing. Just search for "11/16 in in mm"
06-10-10, 02:12 PM
#8
Asi
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06-10-10, 02:21 PM
#9
powers2b
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Originally Posted by BCRider
Do the math. 11 divided by (that's what the "/" sign means as well as denoting a fraction) 16 = 0.6875 inch

And there's 25.4 mm in an inch. So 25.4 x 0.6875 = 17.4625 mm's

So it sounds like you need a 17 mm wrench.

The other way would be to measure with a metric ruller across the flats of your 11/16 wrench. Or even to use a metric ruler to measure 11/16 on an imperial ruler.

Any of these options would have been faster than typing this sort of question on the 'net..... Imagination is the first step in prolem solving.
How will a 17mm wrench fit a 17.5 bolt??
Just curious about the physics.

Enjoy

Last edited by powers2b; 06-10-10 at 02:22 PM. Reason: because I am the GOD of my posts!!
06-10-10, 02:25 PM
#10
Al1943
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What you need is a metric crescent wrench.
06-10-10, 02:28 PM
#11
mike_s
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Fail. http://lmgtfy.com/?q=11%2F16+in+in+mm
06-10-10, 02:29 PM
#12
powers2b
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In the US they charge extra for metric adjustable wrenches because we have an aversion to socialism.

Enjoy

Last edited by powers2b; 06-10-10 at 02:29 PM. Reason: Because I am the GOD of my posts
06-10-10, 02:39 PM
#13
HillRider
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Originally Posted by powers2b
How will a 17mm wrench fit a 17.5 bolt??
It won't but then neither of us have ever seen a 17.5 mm bolt so it's not a problem.

Some are so close they are ok like a 11mm = 7/16 or a 14mm = 1/2
You were doing fine with the 7/16" = 11mm but a 14 mm is not close to 1/2" which is 12.7 mm. Other close equivalents are 8 mm = 5/16" and 16 mm = 5/8"
06-10-10, 02:44 PM
#14
powers2b
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Originally Posted by HillRider
It won't but then neither of us have ever seen a 17.5 mm bolt so it's not a problem.
It might be a problem for the OP if he goes out and buys a 17mm wrench per the recomendation.

Enjoy
06-10-10, 02:57 PM
#15
cyclist2000
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Originally Posted by powers2b
It might be a problem for the OP if he goes out and buys a 17mm wrench per the recomendation.

Enjoy
But the OP said he needed a wrench slightly smaller than the equivalent to the 11/16"
06-10-10, 03:00 PM
#16
fujiyama
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so, here's the thing. i did google inches to mm before i posted this. but, the conversion kept seeming really off.

so, thanks to a comment on here, you reminded me just to measure the wrench gap with a mm ruler (dunno why i didn't think of that).

it turns out an open ended 11/16 wrench is 28 mm. And it clearly says 11/16 on the wrench and i remeasured it about 5 times.

Seems odd to me.
06-10-10, 03:01 PM
#17
powers2b
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Ah, missed that with all the math going around.

Cheers

Enjoy
06-10-10, 03:08 PM
#18
fujiyama
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and i just found one on ebay for 9 bucks by park tools. my question is why dont any local bike shops in my area have a good selection of bike tools for sale. they always have to order them.

i ended up just taking apart my crank set to get to the nut i needed to tighten. not the end of the world, but a cone wrench would make my life a lot easier when adjusting this old bottom bracket! its just a normal thin nut, not you typical case for a bottom bracket adjustable cup wrench, in case you're wondering.

=(
06-10-10, 03:13 PM
#19
cyclist2000
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Originally Posted by fujiyama
so, here's the thing. i did google inches to mm before i posted this. but, the conversion kept seeming really off.

so, thanks to a comment on here, you reminded me just to measure the wrench gap with a mm ruler (dunno why i didn't think of that).

it turns out an open ended 11/16 wrench is 28 mm. And it clearly says 11/16 on the wrench and i remeasured it about 5 times.

Seems odd to me.
I don't know what you are measuring or if you are writing it wrong. A 1-1/16" opening is 1 inch plus 1/16th of an inch which is 27mm. A 11/16" is clearly less than 1 inch and less than 25.4 mm. If you are measuring ~28mm then it is probably a 1-1/16" opening.

Also since you have a mm ruler why not just measure the distance between the flats of the nut?

Last edited by cyclist2000; 06-10-10 at 03:16 PM.
06-10-10, 03:20 PM
#20
fujiyama
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Originally Posted by cyclist2000
I don't know what you are measuring or if you are writing it wrong. A 1-1/16" opening is 1 inch plus 1/16th of an inch which is 27mm. A 11/16" is clearly less than 1 inch and less than 25.4 mm. If you are measuring ~28mm then it is probably a 1-1/16" opening.

Also since you have a mm ruler why not just measure the distance between the flats of the nut?
just checked again. you're right. it's 1 and 1/16. the ones are super close together. i feel dumb. now it makes sense. as you can tell, i'm new to this whole bike building thing. but, i'm getting there.

problem solved. thanks everyone!
06-10-10, 03:21 PM
#21
Bob Pringle
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A 1 1/16" (1.0625) wrench would be 26.9875mm. That's probably what the OP wanted to convert. And 14mm is .551 inch, just slightly less than 9/16", which is .5625 in decimals.
06-10-10, 03:32 PM
#22
JohnDThompson
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Originally Posted by va_cyclist
Let me Google that for you:

http://www.hamuniverse.com/antfrac.html
No need to get that fancy, just type "11/16 x 25.4" into the Google search box and google will calculate it for you:

06-10-10, 06:11 PM
#23
DieselDan
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To simplify: bikes usually have metric fasteners. Don't bother with SAE tools unless you have a vintage American made bike or a Worksman.
06-10-10, 07:21 PM
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06-10-10, 09:38 PM
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bjtesch
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When I was in college (long ago) I worked in a garage. Back then almost everything we worked on used SAE fasteners so I had a set of SAE wrenches. I had some friends who worked for a shop that did a lot of foreign cars. They said that most metric fasteners could be managed with SAE tools. I haven't been a full time mechanic in a long time but for the last 20 years I've had cars (starting with a Ford Taurus) that had a lot of metric fasteners so I've had to get a full set of metric AND SAE tools.

There are some wrench sizes that are almost the same between SAE and metric, but in the original question if you have an 11/16" fastener (which would commonly be the nut size for a 7/16" bolt) then a 17mm wrench probably won't fit on it at all, and an 18mm wrench might be too loose if the fastener is really tight. If you have to use metric on SAE or vice versa then it is probably best to do the math first so you know how well the wrench will fit. Sometimes you just have to buy the right tool.