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Small Allen Keys

sgrammel

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Oct 27, 2009
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1,353
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The 'couv
Larger Allen keys have the size stamped on them...Do smaller ones (e.g 1/16"). My eyes may not be good enough to seem the stamping...curious if I am trying to see something not there
 
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PCustoms

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Jul 23, 2011
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VT
Larger Allen keys have the size stamped on them...Do smaller ones (e.g 1/16"). My eyes may not be good enough to seem the stamping...curious if I am trying to see something not there
It's not there, no room
 

i84x

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Nov 1, 2024
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100
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Earth
No. Usually if they come in a holder or pack they will be stamped on that instead. Also Calipers, especially those that auto convert to fractions, are your next best bet if you just have a pile of unlabeled ones.
 

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mikedodge

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Jun 27, 2017
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2,816
I've never paid attention to the size indicated for Allen keys it's always been whatever fits.
 
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bonneyman

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Apr 22, 2010
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Desert SW
Bite the bullet once, and go thru all your small keys and measure them. Then, tear off a piece of duct tape or masking tape, write the size on it with marker, and then stick the keys to that strip after you measure them. Kinda tedious, but it'll keep the sizes together for awhile and easier to find.

I have a problem with the tiny handled metric keys, so I figure out what size they are with a known allen head bolt and write the size on the handle.
 

RoninB4

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Jul 22, 2020
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3,577
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Under My House
-Working in fractions is fine for woodworkers but to avoid mis-identifying drills, hex keys, taps, fasteners, etc. it's best to work in decimal form. The difference between some metric/inch sizes isn't much but it can make a difference. Plenty of times I've had injection molds and even in cars where someone didn't bother working in decimal form and ruined the threaded hole with an incompatible fastener. Working in decimal notation is less math IMO. Just a suggestion, there are many other benefits.
 

1982fxr

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Jan 7, 2012
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10,012
Location
Phoenix
Bite the bullet once, and go thru all your small keys and measure them. Then, tear off a piece of duct tape or masking tape, write the size on it with marker, and then stick the keys to that strip after you measure them. Kinda tedious, but it'll keep the sizes together for awhile and easier to find.

I have a problem with the tiny handled metric keys, so I figure out what size they are with a known allen head bolt and write the size on the handle.
And have glue all over them, I don't think so.
 

tarbellb

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Apr 17, 2011
Messages
5,760
Location
Oregon
Color coded like PB Swiss or Wera is nice

Or put huge readouts on the tool holder/case
 
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