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Reading the Micrometer. Know the names of the different parts of the Micrometer.

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## Reading the Micrometer

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**The sleeve goes from 0 to 0. The last 0 could have a 10**there. It represents a movement of 1 inch (1.000) Each large number is equal to .100. 1= .100, 2= .200, 5= .500 etc. The Lines in between the numbers represent .025 thousands of and you would count them up .025, .050, .075, .100**The Thimble on the side of the sleeve moves as you rotate**it. Each mark is = to .001. Each time it moves one full turn it travels a distance of .025.**To read you must take each section and add it together**for example, The last large Number is 5 so we have .500 we have one line past the 5 so we have .025 and the thimble is turned to the 7 so we have .007 add it together and we have .532**The last large Number is 2 so we have .200**we have three lines past the 2 so we have .075 and the thimble is turned to the 18 so we have .018 add it together and we have .293**Some times the thimble is part way in between the two**numbers. Now you will have to carry it out to a 4th digit that is ten thousands of an inch. Write down the answer to this problem add a .0005 to it because it is halfway in between the 12 and 13. Answer at the end of the show.**The End**1. .6875 2. .625 Don’t forget the decimal

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