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Kroeplin Micrometer

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flywheel

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Joined: Tue Dec 31, 2013 2:08 pm

Location: USA

Post Fri Mar 14, 2014 8:37 pm

Re: Kroeplin Micrometer

Supposedly, paper currency is 0.0043" thick. Does Kroeplin agree?
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GWiens2001

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Lock-Goblin-Gordon
Lock-Goblin-Gordon

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Joined: Thu Oct 25, 2012 9:05 pm

Location: Arizona, United States

Post Fri Mar 14, 2014 8:43 pm

Re: Kroeplin Micrometer

Depends on the country the currency is from. Maybe you could send MrAnybody a U.S. $100 bill, so he can verify the calibration of his Kroeplin. :D

Gordon
Just when you think you've learned it all, that is when you find you haven't learned anything yet.
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flywheel

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Location: USA

Post Fri Mar 14, 2014 9:21 pm

Re: Kroeplin Micrometer

One US dollar is equal to 0.72 euros and 0.0043 x 0.72 = 0.003096 so....
But that doesn't seem right, right?!

Hells bells, how thick is European currency MrAnybody?

I actually was impressed with my cheap digital calipers measuring a new dollar between 0.0035" and 0.0040" thickness. Within a thousandth will work just fine for everything I will need them for.
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mechanical_nightmare

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Joined: Fri Feb 21, 2014 2:50 am

Location: Turkey

Post Sun Mar 16, 2014 7:49 am

Re: Kroeplin Micrometer

I finally got my dial depth gauge, and it works pretty well for decoding dimple keys:

Here's the tool, assembled:

Image

It is a bit tricky to set it to 0, you need a completely even and straight surface. I used a pane of glass from an old printer:

Image

The #1 cut; .23mm

Image

#2 cut, 1.4mm

Image

And so on and so forth...
If you do not manipulate the lock, then the lock will manipulate you
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piotr

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Location: Victoria, Australia

Post Sun Mar 16, 2014 7:05 pm

Re: Kroeplin Micrometer

mechanical_nightmare wrote:I finally got my dial depth gauge, and it works pretty well for decoding dimple keys:

Here's the tool, assembled:


Impressive piece of equipment! How much did it cost you?
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mechanical_nightmare

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Location: Turkey

Post Mon Mar 17, 2014 2:39 am

Re: Kroeplin Micrometer

It cost me $100, $30 more from the US listed price, and even that's with some negotiating. Unfortunately you get ripped off for imported goods in my country, although with shipping it would end up costing more when bought from eBay.

It is a high precision tool though; you can even spot slight errors when you compare code-cut keys to duplicates. Now I need to take a look at the keying systems section in LSS to help determine the direct codes, acceptable tolerance, etc.
If you do not manipulate the lock, then the lock will manipulate you
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femurat

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Joined: Mon Mar 14, 2011 3:47 pm

Location: Italy

Post Mon Mar 17, 2014 4:09 am

Re: Kroeplin Micrometer

Image

Image

Sorry to derail this thread, but I want to post a picture of my micrometer and think this is the best place to show it.
It probably has 40 or more years and was used by a prosthetic gold-teeth maker. The spring broke and was replaced by a simple rubber band. It works very well. The pointer slightly engages the scale marks so it's easy to read it without moving the needle.
I can't guess the brand name, I clearly see STAINLESS SWEDEN but not the cursive.

Cheers :)
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escher7

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Joined: Thu Feb 14, 2013 12:20 am

Location: Canada

Post Mon Mar 17, 2014 6:08 am

Re: Kroeplin Micrometer

mechanical_nightmare wrote:It cost me $100, $30 more from the US listed price, and even that's with some negotiating. Unfortunately you get ripped off for imported goods in my country, although with shipping it would end up costing more when bought from eBay.

It is a high precision tool though; you can even spot slight errors when you compare code-cut keys to duplicates. Now I need to take a look at the keying systems section in LSS to help determine the direct codes, acceptable tolerance, etc.


Yes, the U.S. list is around $70, but when I compared it to Mitotoyu I was shocked. Their price for a similar gauge is in the $400 to $500 range. When I still had my micro machining tools, I bought Mitotoyu dial indicators etc. which I preferred for quality and they weren't that bad, but now the prices are nuts. So even at $100 you did pretty well as it looks to be excellent quality. A lot of the stuff is digital now, but I prefer my dial calipers (Mitotoyu) to the digital ones I bought a few months ago. With a dial you can interpolate and get an extra decimal place accuracy if you are careful.
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ARF-GEF

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Joined: Tue Nov 20, 2012 3:03 pm

Location: Eastern Europe

Post Mon Mar 17, 2014 8:30 am

Re: Kroeplin Micrometer

Cool stufff there, both Femurats and mechanical nightmare's ones are juciy :)
To infinity... and beyond!
=== WARNING DANGER OF TYPOS!===
Arfspeak: calnin cladycomes: you allow her key in themodning
Equals in plain English: cleaning lady comes: you allow her key in the morning
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