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Thursday, November 03, 2022

The Micrometer

The micrometer endures as a critical instrument of measurement in industry and engineering. 
This film provides an excellent introduction on the description and proper use of this important tool.

VIDEO HERE  (15:26 minutes)

17 comments:

  1. 25 years ago, my wife and I were at a flea market. Some guy was selling a Starrett micrometer. I had an idea of what it was worth and he was only asking $40 for it. I had just bought a house and had no urgent need for it. I kick myself all of the time for not grabbing it.

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    1. I recently bought a Starrett at a local garage sale for $1. Probably could have talked them down.

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    2. My best at a garage sale was $10 each for a 275 lbs anvil and a 12" Wilton vise.

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  2. many years ago in my younger days, I used several different types of them in the commercial printing business, running newspaper press'. I've probably have lost my touch for them. sucks getting old, but beats the alternative.

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  3. Everything seems to be digital these days. I have a couple micrometers and one vernier caliper that I need to refresh my mind on how to read and get my reading glasses out to get the numbers.
    Daryl

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  4. I was a tool and die maker’s apprentice before I lost my mind and joined the Army. Still have my one inch, two inch, depth Mike and a six inch dial caliper. Still use them for OAL and case trimming while reloading. Loved that stuff, but by the time I retired, machining had moved on with cad machines and I was way behind the power curve. Just kept blowing up duds for money. Now I’m retired, I might find me an old Bridgeport milling machine and a decent lathe and see what kind of mischief I can get into. Eod1sg Ret

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  5. The first tools I bought as an apprentice machinist were
    0-3" Mitutoyo mics
    6" Etalon caliper
    1" NSK dial indicator
    (2) Interapid test indicators
    Mag base
    Edge finder
    Dead blow hammer
    Kennedy tool chest
    The bare minimum a machinist will need, and worthless if he doesn't know how to use them.
    Boss let me purchase these "on time" and make payments. He also gave me a well-thumbed Machinery's Handbook. He took me under his wing, became my mentor and friend.
    That was over 40 years ago. (RIP, Doyal.)

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    1. And a Starret 6” scale, possibly wit hook

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  6. I went to an estate sale on the last day a few years ago. There were two Mitutoyo digital micrometers (.00005 precision) and a Mitutoyo dial caliper sitting in with some other items. Just out of curiosity, I asked what they wanted for them. When they said $20 for all three I almost broke my wrist getting the cash out.

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    1. Were you wearing a bandana over your face? What a steal!

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  7. Measure with a micrometer, mark with chalk, cut with an axe.

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    1. You, sir, had me giggling for a few minutes there. 'Cause isn't that just the truth? Remember: There's no difference between theory and practice. In theory.

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    2. You just described my handyman skills

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    3. That's about the size of it. Thanks for the laugh.

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  8. My dad was a metal fabricator in my earlier years. He showed and taught me how to use a micrometer back in the 70's. Let me take it to "show and tell" at school one day. Everyone was amazed that I could measure the diameter of their hair down to the thousandth of an inch. I was the "cool" kid for that one day. I inherited them all after he passed and some POS I hired to clean out my house when moving I'm pretty sure swiped them. God knows what they were worth monetarily, but they were more of an emotional value to me.

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  9. I have both a regular 0-1" analog and also a metric. They were both free from former employers. The inch micrometer had a few rust stains from being in a toolbox that had gotten wet. The stainless steel micrometer was fine. It only needed to be cleaned and oiled. The metric was not being used and was surplussed when a bunch of unused instruments were being cleared out due to a lack of storage space. Both passed calibration when I checked them about three years ago.

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