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Adam Savage's Vintage Automatic Testing Micrometer

In another deep dive into the world of metrology (the study of measurement), Adam shows us this vintage automatic testing micrometer that is used for a different purpose than his machining micrometers. This massive piece of kit was created to measure and test the thickness of soft goods, like felt and leather, and its use illuminates another interesting aspect of measurement.
Adam Savage's One Day Builds: Micrometer Gauge Box Set: fitop.info/build/videot/ZYeqYZGXsKaXtaM
Shot by Adam Savage
Music by Jinglepunks
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#AdamSavage #Micrometer #Metrology


  1. Adam Savage’s Tested

    Adam Savage’s Tested

    Uukausi sitten

    Adam Savage's One Day Builds: Micrometer Gauge Box Set: fitop.info/build/videot/ZYeqYZGXsKaXtaM More tool videos: fitop.info/goon/PLJtitKU0CAehVwewqUdsYrDqg9Kp1jQvj.html

    • Lars Arne

      Lars Arne

      27 päivää sitten

      @Peyton Rory do not fall for this shit, the site will leak your information



      Uukausi sitten

      Hi Adam, how you doing

    • Lars Arne

      Lars Arne

      Uukausi sitten

      Nice one, this absolutely makes sense 👌 Oh and make the case colors either orange or white 🤔 Well... Or whatever you want, but I'd make them orange or white 😁😉

  2. Joshua Martin

    Joshua Martin

    17 päivää sitten

    I'd love to see a One Day about cleaning and restoring things like this!

  3. Kais


    22 päivää sitten

    "200 Thousandths of an inch" is a verbose way to reference a width of 5mm in the Metric system, lol.

  4. davemlbc


    23 päivää sitten

    At work I get to use a tool that operates on similar principles, the Gustin-Bacon Measure-Matic. Its anvil is a square foot and it's used for measuring big samples of fluffy materials like filtration media, insulation, or poly fill.

  5. Datyn sexton-green

    Datyn sexton-green

    27 päivää sitten

    I chose to paint all of my work tools in my favorite car color, maybe paint them the color of your BJ42?

  6. Jefté Santiago

    Jefté Santiago

    28 päivää sitten

    7:34Always with the excuse to buy something to made a case for it.

  7. Jefté Santiago

    Jefté Santiago

    28 päivää sitten

    4:55 Adam, you might need this: fitop.info/build/videot/hnLHab67yNB3t40. I know that you do not have a lot of space, but it might be helpful.

  8. shutupandcolor


    Uukausi sitten

    Wouldn't another method be to calibrate the machinery used to produce the thickness.

  9. Priscila M.

    Priscila M.

    Uukausi sitten

    Wait wait. Did you measure the dial with your tattoo or am I imagining things? Loved it!!!

  10. Badger Gear Compound

    Badger Gear Compound

    Uukausi sitten

    Great vids. Barrel micrometer....educated “C” clamp. Cheers

  11. m hathaway

    m hathaway

    Uukausi sitten

    great find. newton mics also works. also need std temp to measure

  12. Jose M. Guerrero

    Jose M. Guerrero

    Uukausi sitten

    Why not use a clutch type micrometer?

  13. muff10000


    Uukausi sitten

    An micrometer doesn't actually measure µm 0.001 mm. only 0.01 mm and at best 0.005 mm with some analog. If you measure µm you most likely gonna get wrong measurement since materials expand and shrinks couple of µm depending on what the temperature is. just the heat from your fingers gonna change the value. Measurement tools usually have the standard of measure 1 decimal smaller than attended to get good enough measurement. that's why some digital micrometer resume 0.001 mm 1 µm, and digital Calipers measure 0.01 mm.

  14. sciloj


    Uukausi sitten

    The amount of torque is equally important for measuring hard materials. By overtightening it, you can get about 0.001" lesser reading on a typical 0..1" micrometer. When the target resolution is about 0.0001", using a ratchet or a friction sleeve (another type of torque-limiting device) is a must.

  15. Arcade Sunday

    Arcade Sunday

    Uukausi sitten

    A fascinating measurment tool!

  16. Mark Matthews

    Mark Matthews

    Uukausi sitten

    And what does he use to measure the dial diameter? Two hairs past a freckle...🙂

  17. 86fifty


    Uukausi sitten

    7:45 - ohhhhHHH! I got so HYPED by the idea of Adam making a box for this thing!! It IS a precious bit of kit indeed! This channel has really inspired me, man! I immediately started thinking about the fact that, usually, boxes open at the top, right? But that would be sub-optimal for this object, since the handle is on one SIDE... So the box should open from the side, yeah?? And SO IT SHOULD BE A LIL DOOR! Being inspired like this is a totally new experience for me, and I thank Adam Savage and Tested for putting out this video that gave it to me! :D

  18. Matt Rowley

    Matt Rowley

    Uukausi sitten

    Adam.... youre the shit! Thank you for sharing your knowledge

  19. Paulo Alves de Souza

    Paulo Alves de Souza

    Uukausi sitten

    When are we going to see a video about that beautiful brand new Sharp milling machine?

  20. Nickpost52


    Uukausi sitten

    I notice that there is not a second smaller dial to show how many times the big dial has gone around, like on a dial caliper. Can you accurately tell how many times the big dial has gone around based on the position of the lever? Or do you just have to have a close estimate of the material before you put it in the device?

  21. TheJagjr4450


    Uukausi sitten

    I have 3 of those - we used to own a Paper and paperboard processing facility and they are the STANDARD for taking measurements of PAPER caliper or thickness. (Z - direction) +/- .001 is the accepted tolerance or variability for paper being printed in rotogravure or offset -

  22. Ben Crenshaw

    Ben Crenshaw

    Uukausi sitten

    you sir are out of calibration at 1:50 by about 8 years.... Get yourself together man!!!

  23. Moss Aphelion

    Moss Aphelion

    Uukausi sitten

    *megamind voice* "metrology!"

  24. Kropoc Leckor

    Kropoc Leckor

    Uukausi sitten

    Adam. Do 1 day restoration/build for this!

  25. Jim McDonnell

    Jim McDonnell

    Uukausi sitten

    Oh - was *not* expecting it to be that large! Good surprise reveal!

  26. Matthew Hilberts

    Matthew Hilberts

    Uukausi sitten

    Their is a similar tool used in the manufacture and repair of some string instruments to get a consistent thickness across the resonating surfaces.

  27. D R

    D R

    Uukausi sitten

    Great lesson on repeatability Adam!

  28. Jared Mulconry

    Jared Mulconry

    Uukausi sitten

    Interesting. Given that this micrometer measures using a set pressure, then for certain materials that are prone to density variations, that may also pose a problem. Would I be right in assuming there are variants of this device that have varied surface area used for measuring? It seems that eventually some form of electromagnetic measurement would be needed, along with some serious analysis. Measuring is tricky.

  29. Xoron


    Uukausi sitten

    Someone should restore this piece of equipment..

  30. Xoron


    Uukausi sitten

    The leather being thicker towards the edges could also be that the overhang of the leather excerts a torque on the pivot that slightly pushes on the piston.

  31. Jim Naden

    Jim Naden

    Uukausi sitten

    Now everybody will be searching for one of those... Me included. Thank You Adam.

  32. Christopher Rines

    Christopher Rines

    Uukausi sitten

    Awesome & Beautiful. No more needs to be said.

  33. Ryan White

    Ryan White

    Uukausi sitten

    What is any unit of measurement other than mutual agreement.

  34. Linda Thompson

    Linda Thompson

    Uukausi sitten

    Hi Adam, please do the restoration video it will be interesting

  35. Jack Barnes

    Jack Barnes

    Uukausi sitten

    Weird, something about the audio at 4:55 ish sets off the Google voice commands on my phone. Doesn't do anything just activates it.

  36. devon


    Uukausi sitten

    I put off watching this video, but now that I've watched it I'm glad I did.

  37. Ben Setter

    Ben Setter

    Uukausi sitten

    Thats super cool!!!

  38. Analogcolor


    Uukausi sitten

    Adam, you should do the R2D2 Blue for your casted items in the shop. Hnnng

  39. Joe R

    Joe R

    Uukausi sitten

    That tool is commonly referred to as a snap gauge..

  40. Mark Reynolds

    Mark Reynolds

    Uukausi sitten

    I have a similar tool for measuring the thickness of guitar or violin tops. It's a wider frame, of course, but it's the same principle. I REALLY like that one, however.

  41. Merennulli


    Uukausi sitten

    You know the moment you paint your cast tools, you're going to have to weather that paint job. :)

  42. Mithbusted


    Uukausi sitten

    Adam should have been a tool salesman lol

  43. Mike Me

    Mike Me

    Uukausi sitten

    We use a smaller Mitutoyo that is spring loaded with large pads to measure soft rubber.

  44. John Taylor

    John Taylor

    Uukausi sitten

    It needs some pin striping

  45. gavin caligiuri

    gavin caligiuri

    Uukausi sitten

    I’m studying to become a rubber engineering tech and the compression of rubber is a real problem with measurements, a Magna Mike is another tool you can use to measure thickness. It uses a tiny ball bearing to measure the displacement between the magnet and the ball bearing to give a reading

  46. David Evens

    David Evens

    Uukausi sitten

    I had a quick look on the manufacturer's web site. All their current digital models have USB for convenient data logging.

  47. Mark Alters

    Mark Alters

    Uukausi sitten

    If He thinks he can measure +/- 0.0005 over 12 inches........ He might need to read the specs on those....... Also, it's a snap gage and not a micrometer. Micrometer refers to a specific type of caliper that uses a threaded spindle to measure the travel. What he has is a dial indicating snap gage

  48. John McClanahan

    John McClanahan

    Uukausi sitten

    Adam, I think the micrometer is suffering from dried out lubricant by the way the plunger lowers slow. A drop of light weight oil on the side of the plunger will loosen it up. I have one like yours and mine had the same problem.

  49. stanfordcoffee


    Uukausi sitten

    Sometimes I wonder if Adam buys things on eBay just so he can make a box for it.

  50. subliminalvibes


    Uukausi sitten

    Cool, but you need one that measures in mm.

  51. William Hobaugh

    William Hobaugh

    Uukausi sitten

    In my Dad's shop all of his are green with a little bit of yellow

  52. Michael-Michael Motorcycle

    Michael-Michael Motorcycle

    Uukausi sitten

    Used a cady gauge fairly regularly over the past 13 years. We use it to measure consistency between blankets used to print beverage cans. A minor difference between the 12 blankets on the machine can make big difference between 1-36 random cans blown off during a quality check. It could be a minor differentiation or a major differentiation in the artwork from can to can. Extremely tight tolerances were needed between the print plate, the blanket and the mandrel that the can rode on around the mandrel circle for consistency. If I remember correctly we were running between .0010 - .0015. When prepping for a label change we would measure a stack of blankets with the cady gauge and then separate them by thickness so the 12 blankets being mounted for the next label were all close if not the same thickness.

  53. jim lewis

    jim lewis

    Uukausi sitten

    This a larger version of the thread wire measuring gage

  54. Warship Models Underway

    Warship Models Underway

    Uukausi sitten

    A nice bright red or green would be sharp, and pick out the lettering in gold or silver paint.

  55. Brent Davis

    Brent Davis

    Uukausi sitten

    don't restore just polish the dial, the tool has a story and history to tell restoring erases the story and history

  56. Reed


    Uukausi sitten

    Do they just use lasers nowadays?

  57. Uatu


    Uukausi sitten

    I'm not saying you have to, but you could do a mini series in a video homage that "restores" your cast hand tools. You could do it where you don't have a monologue but just show yourself working with tools. Maybe just put text there explaining everything and...oh I don't know... say random things like, " I make a new one" or mention Evapo-Rust product placement.

  58. Ed RDnc

    Ed RDnc

    Uukausi sitten

    I recently saw a documentary that focused on how the advancement of metrology was a primary factor in establishing the concept of manufacturing "interchangeable parts". Repeatability within the testing instrument and across other instruments (including standardized calibrations), HAD to evolve first.

  59. zimmy1958


    Uukausi sitten

    Thank you Adam.

  60. WoLpH


    Uukausi sitten

    Analog hardness testers work in a very similar fashion. That might also be useful for you Adam

  61. Chris Kucia

    Chris Kucia

    Uukausi sitten

    HI Adam. New subscriber. Been watching a lot of your videos lately. I noticed that a lot of your machine tools appear to have billiard balls on the ends of the handles. Is this something you do yourself? If you haven't talked about the process, I would surely find it interesting.

  62. Schmeat


    Uukausi sitten

    Being a Metrologist , I appreciate this video.

  63. michael salyer

    michael salyer

    Uukausi sitten

    I've been a machinists for 12 years and have never seen a moc like that its beautiful

  64. aserta


    Uukausi sitten

    I would be very careful about opening this. Some of these tools (specifically calibrated, micro geared) cannot be put back together without knowledge and special tools. It may happen that this gets opened, and that's about it.

  65. feldamar2


    Uukausi sitten

    Do the Restoration Adam. You know you want to. I know *I* want you to!

  66. EpsilonGoods


    Uukausi sitten

    Holy shit dude ironman is behind you

  67. TheTarrMan


    Uukausi sitten

    Wow! Benny like! I have a hand-healed version of those made for measuring paper.

  68. TooLazy4Names


    Uukausi sitten

    I feel like Adam is the kind of person who would become fascinated by a camera lenses from the 1950s and 60s.

  69. Bill Briggs

    Bill Briggs

    Uukausi sitten

    I would consider this more of a clutch than a ratchet. Like on your cordless drill.

  70. john john

    john john

    Uukausi sitten

    7 minutes, 50 second: I love measuring things followed by 30 seconds being a casting agent (I know, dad jokes. I regert nothing)

  71. Jesus von Nazaret

    Jesus von Nazaret

    Uukausi sitten

    Adam, look out for old Mitutoyo 515 series or Hommel Cadillac height gages, you will love the feel of the instrument. Especially the Cadillac models are traded for rather small prices.

  72. Terry Smithwick

    Terry Smithwick

    Uukausi sitten

    Awesome device that fills an obvious need I had never considered. #FeedTheAlgorithm

  73. Shea Transue

    Shea Transue

    Uukausi sitten

    I work at a plant that produces medical textiles. Test methods (a precise set of tolerances and instructions) are actually sold by standards companies that specify how to take these measurements for pretty much any material under the sun. The one other thing Adam didn’t mention is that the anvil size actually matters because a test method usually calls for a certain PSI. We have several of these micrometers except they are digital and you can add and subtract weight.

  74. trevonbach


    Uukausi sitten

    AS SAID IN MIKE MEYERS' SNL sketch, with ADAM's best impression indeed: "If it ain't ORANGE it's crap!" (ORANGE is substituted for SCOTTISH in the sketch.. Pertaining to the colors to refinish your tools...) i was always a science nerd and as a ginger my friends would always say "you remind me of that informative guy from that science show... QUIET DOWN ADAM..." they call me TRE, and i am 44. You have shown me so much, mostly how to keep zen and calm, to expect mistakes and laugh and learn from them. Thank you.

  75. Pat Fishing

    Pat Fishing

    Uukausi sitten

    That's why fabrics are measured by weight/surface

  76. Pellervo Kaskinen

    Pellervo Kaskinen

    Uukausi sitten

    I do have some experience of those kinds of measuring tools from different industries. In paper industry, soft tissues were measured that way, with a difference that the anvil was way larger. In rubber industry the device was about what you showed. In my later life, I have been dealing with catheter end preparations. They have to be properly shaped and sized before they can be pushed into your veins !!!. The production measurement is again done with a measuring device using the same principle, but much smaller anvil and yet better resolution on the dial. The laboratory measurements use a shadow measurement with a graticule and a micrometer moved holder (two-axis linear and one rotary axis). That is especially good, if the catheter must have a ball end.

  77. Bob Toerge

    Bob Toerge

    Uukausi sitten

    Dear sir, I used a smaller version of this mic, was amazed how simple it was to use and with consistency. Love your work and look forward to the next. Thank you

  78. Hans Lain

    Hans Lain

    Uukausi sitten

    Dude... if your shop was bitcoin, the value of your mining would be so far up there with the organization effort and tool quality that buy you efficiency and sanity. Thanks again for sharing all that you do, Adam. Enlightening!

  79. aProudlLiberal


    Uukausi sitten

    It's sad that this instrument isn't properly labeled as it encourages you to continue to use the wrong terminology. You routinely refer to calipers incorrectly as micrometers. It is not a micrometer (despite the label). It's a drop indicator. Micrometers are screw driven devices vs the drop indicator is gear driven. I speak with a little authority as 40 year veteran metrologist. That being said, cool find.

  80. mwechtal


    Uukausi sitten

    The definition of a micrometer says that it measures by moving a spindle with a finely threaded screw. So, I would argue that this is a dial gauge regardless of it's label. A really HUGE dial gauge, though. 😁 1: an instrument used with a telescope or microscope for measuring minute distances 2: a caliper for making precise measurements that has a spindle moved by a finely threaded screw



    Uukausi sitten

    I think that it would be really AWSOME if you were to make the box for it look like a large coffee cup and use it casting stand/handle as the coffee cups handle

  82. Juggernaught W

    Juggernaught W

    Uukausi sitten

    As a metrologist I love these videos



    Uukausi sitten

    Hi everybody

  84. Charun1982


    Uukausi sitten

    I'd love to see you do a restoration on that beauty!

  85. TheRealACEB32


    Uukausi sitten


  86. flymeetspaddle


    Uukausi sitten

    i usually paint each tool individually. trying to decide which color will suit it is fun, like trying to pick the best color to accentuate the curves and body lines of a car :)

  87. Mark Silverman

    Mark Silverman

    Uukausi sitten

    An actual electron scanning tunneling microscope would be hilariously inappropriate for measuring the thickness of anything... hey, these carbon atoms are all bumpy! Let's sand them smooth.

  88. flymeetspaddle


    Uukausi sitten

    one color for all the tools looks nice overall but sounds like it could become hard to find the tool you want when you keep mistaking them for each other haha

  89. lukthere2


    Uukausi sitten

    Ok out of context question. Weren't there videos of adam making a raptor as a part of his one day build? I can't find any of the videos on the channel..

  90. J S

    J S

    Uukausi sitten

    Think measuring thickness is tough, try measuring surface area...and then get that electron microscope out and think again. Gage R&R is an incredibly important part of the producing of things at volume, understanding the variances from the part, the tool, the person, and the process used. Getting hands off is a great way to reduce a lot of variation.

  91. Joseph Krug

    Joseph Krug

    Uukausi sitten

    I did not see anyone else post a link, but the item in the video is similar to this (He mentioned the name but I wanted more info :) ): www.ejcady.com/micrometer-measurement-precision/m-model

    • Michael Keiderling

      Michael Keiderling

      Uukausi sitten

      From the marking on the arm I think it is a DW (dead weight) model www.ejcady.com/micrometer-measurement-precision/dw-model

  92. Leo


    Uukausi sitten

    Leather desk protector, when you replace it cut it up into small pieces and put them up for purchase to subscribers. 👍

  93. robert bownes

    robert bownes

    Uukausi sitten

    Adam, I am sure you have at least one larger dial based measuring tool in your shop. I suggest you look at the wall, and ask yourself “what time is it?” If you think the science of metrology as far as measuring length goes is interesting, just wait until you begin to venture into the insanity that is the metrology of time. At that point, you won’t really know what time it is until you have at least three atomic clocks. ;)

    • skunked42


      Uukausi sitten

      @robert bownes what do you call a reptililan clock? a croc-o-dial.

    • skunked42


      Uukausi sitten

      @robert bownes groan

    • robert bownes

      robert bownes

      Uukausi sitten

      @skunked42 all a matter of time. ;)

    • skunked42


      Uukausi sitten

      beat me to it.

  94. Kolja Geldmacher

    Kolja Geldmacher

    Uukausi sitten

    Make it ORANGE!!! :D

  95. Matthew Elliott

    Matthew Elliott

    Uukausi sitten

    definitely want a restoration video, that thing is beautiful

  96. Daniel Rusco

    Daniel Rusco

    Uukausi sitten

    Today's episode is brought to you by the word metrology!

  97. Tom Horsley

    Tom Horsley

    Uukausi sitten

    You're just looking for an excuse to paint lots of stuff because you like painting :-).

  98. Joe Pohlen

    Joe Pohlen

    Uukausi sitten

    I often say with fuzzy measurements like these that it's more important to be consistent than correct

  99. IamtheTolle


    Uukausi sitten

    I truly love when Adam gets a new toy. Because these videos really have the same energy as a kid excitedly telling us about his Christmas haul.

  100. Dale Riccetti

    Dale Riccetti

    Uukausi sitten

    Your exuberance is contagious. I vote for a "Hunter Green" for the casting color lol