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The only thing so far is this.

Lengnau is a municipality in the district of Zurzach in the canton of Aargau in Switzerland

Is that punch hollow? I think it is a balance staff remover or roller remover tool. I have no idea what those two knobs are for on the side. If it removes what I’ve said. There’s nothing to stop the parts just dropping through.

How did you get it?

 

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I've seen one before, but have always thought they have something to do with what oldhippy said, balance staff remover. I believe the bottom lever on the left is to pull towards the other part sticking out, which is just to have something to hold onto to make it easier for the lever to move, if that makes sense.

Does the lever on the left pull the vice grip closer to the V cutout, once it is roughly set with the main setting knob at the front?

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The only thing so far is this.
Lengnau is a municipality in the district of Zurzach in the canton of Aargau in Switzerland
Is that punch hollow? I think it is a balance staff remover or roller remover tool. I have no idea what those two knobs are for on the side. If it removes what I’ve said. There’s nothing to stop the parts just dropping through.
How did you get it?
 

The thumb knob opens the mouth in the center and the side knob is just used to brace the other finger as leverage. The knob on the end is an unknown feature.dc1df7d40c8a1fe7c3930a9a704569fb.jpg
No hole in the stake at all. I thought it would somehow be for studding a Hairspring ??


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Oberli and Loeb is still in existence the company changed name to Oberli CNC in 1998 they are a small engineering company that amongst other things manufacture tools for the watch industry, the tools they produce are specialist tools manufactured to the clients manufacturing needs.

The tool you have will have been made to do one job over and over again in a manufacturing environment.

You could try contacting them and see if they remember who they produced it for and what its use is 

https://www.oberlicnc.ch/html/fabrikation.html#ringe_muttern

Personally I think this tool is for pinning a hairspring to a collet

 

Edited by wls1971
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Oberli and Loeb is still in existence the company changed name to Oberli CNC in 1998 they are a small engineering company that amongst other things manufacture tools for the watch industry, the tools they produce are specialist tools manufactured to the clients manufacturing needs.
The tool you have will have been made to do one job over and over again in a manufacturing environment.
You could try contacting them and see if they remember who they produced it for and what its use is 
https://www.oberlicnc.ch/html/fabrikation.html#ringe_muttern
Personally I think this tool is for pinning a hairspring to a collet
 

Thank you very much. I sent the company an email asking for it’s use and and documentation.


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