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what is this wrench for?

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j p smith

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May 22, 2013
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Glendale, Arizona
That style of wrench came with some tools that required a wrench to change out a drive or adapter of some sort. I know some of the Concrete Core drilling tools came with a wrench similar to that to change the bit adapters.
 

kd3pc

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Aug 10, 2013
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Northern Neck
the round end is used to "lightly tap" the wrench, I saw a lot of these in servicing Heidelberg printing presses at newspapers.
 

Gmonkee

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May 9, 2010
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Just a generic German SOE wrench. It could be one of a set or have come with something.

Those are generally quite good tools. I use a few myself.
 
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JJThrasher

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May 30, 2013
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Indiana
Not uncommon to find tools like that with pieces of equipment. The size fits whatever hex typically needs adjusted or whatever. Similar to the AMMCO wrenches used on brake lathes for the four main sizes.
 

pstemari

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Jan 7, 2012
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Seattle
Pretty standard service/pump wrench. Wright, Martin, and Proto make them in the US.

Sent from my Nexus 6 using Tapatalk
 

neophyte

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Apr 23, 2012
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Pennsylvannia
It's a standard thick pattern single open end wrench. Wrenches like that are typically supplied with, or purchased for, equipment that needs a few sizes of wrenches, were you want to keep a wrench with the equipment, sort of like the wrenches that come with routers to loosen or tighten the collet, etc.

Most German companies tend to manufacture that type of wrench to DIN 894 standards now, so the design is slightly thinner and usually with a black finish, akthough I've also seen chrome DIN 894 wrenches.

That Gedore wrench is more similar in design to the single open end wrenches still made in Italy, such as the Usag 248 series wrenches, or the Beta 52 series wrenches. The italian wrenches also used to have the round bulge on the end. Martin in the USA in particular, as well as Proto and srmstrong still manufacture thst style of wrench and many other older USA tool companies used to as well. A number of Japanese wrench manufacturers still manufacture that style if wrench as well.
 

leg17

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Aug 11, 2011
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1,374
Location
Kentucky
I've been trying to think of the name of this wrench for days now and I finally remembered. It's called a check nut wrench. It's used for tightening check nuts or jam nuts used on a particular piece of equipment.

Check nut wrenches are usually somewhat thinner than the OP wrench.
 
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