On Fri, 05 Nov 2010 19:32:22 +0000, Red Green wrote:
Depends what's missing, I suppose. I used to rarely find things that were
11mm. 8, 10 and 13mm were very common, and everything else somewhere
Personally I like having at least a couple of everything in a variety of
socket depths and drive sizes.
And yess, LOTS of nuts that are not SAE or Metric. Think BSF,
Whitworth, and Acme to start.
But when you are talking METRIC, they are, except for a very few
specialty apps, either ANSI/ISO, DIN, or JIS.
And the 15mm nuts on a bike - same size wrench required for the
15mm is not a common standard nut or bolt hex size, but it will sometimes
be used for a flange nut or flanged hex head bolt. I don't recall right
now if I've seen it used for a plain hex nut or bolt, but the size
is definitely used on many vehicles.
When the game is over, the pawn and the king are returned to the same box.
Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar.org
Remember Norton motorcycles? My brother had one in the 70's. My son
and I were just talking about metric/sae & I seem to recall the Norton
was some bastard type, too-- neither set of wrenches fit them.
I know not what HD is, but Sears? I guess it's like food. Keep the
price the same and decrease the amount. OTOH, you get what you pay
for. Try a better brand, like K-D. I've yet to see any skipped sizes
in their line-up. I haven't needed to buy any new tools in a awhile,
so don't know who is currently screwing the customer.
I do know one thing. Almost all metric sizes will fit any SAE size
fastener, although perhaps a bit loose or tight. I doesn't work the
other way around. If you can only afford one std, get metric.
wrench in a kit, as NO 9mm nuts or bolt heads exist in any of the 3
(or 4 - 2 are the same ) metric standards.
In a european or american (ISO/ANSI) set, a 12mm might also be
missing, as it is only used in JIS standard. American (ANSI/ISO) sets
don't need a 17mm or a 19mm either., while JIS and DIN use both.
ISO/ANSI do not use 11MM either, while JIS does not use 11 or 18 0r
21.DIN doesn't use 21 either - and NOBODY uses 20 or 23, or 25.
As for standard vs metric, 8mm fits 5/16 reasonably close, 11mm fits
7/16", 13mm fits 1/2" 14mm fits 9/16, and 17mm fits 11/16
Not perfectly, but close enough if the fastener is not too tight and
you are in a pinch.
I don't know what reference library fantasyland YOU are living in, but
having used metric sized wrench sets professionally for about 35 yrs,
I can certainly attest to the fact that 9, 12, and 17mm fasterners do
indeed exist and are found on real actual mechanical devices requiring
said wrench sizes.
required a 9mm wrench that I can remember. I DO have a couple totally
pristine 9mm sockets though.
There are some 9mm 12 point fasteners I believe also on VW clutches -
you use a special VW service tool to service the pressure plate.-
again, a special application where you would/should not use a
combination wrench - and the open end part would definitely not fit.
And I've worked on British, German, French, Italian, American,
Russian,French, Korean, Mexican, Canadian, as well as a few other,
I think I heard the float needle seat on some itallian motorcycles
are 9mm HEX - requiring a thinwall 9mm scoket to take them out - but a
9mm open end, box end, or combination wrench wouldn't do that job
either. Mabee brake bleeder screws - (Honda Motorcycles?) you could
use a combi wrench there
Now on BICYCLES, that's a different story.- like I said - special apps
- non standard. Wacky non-standard thread pitches, particularly on
And Chinese?????? a 9mm wrench might fit something that was SUPPOSED
to be either 8 or 10.
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