Micrometer
- November 7, 2016
- Posted by: Shahid
- Category: Uncategorized
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![](http://aims-ksa.com/wp-content/uploads/2016/11/Micrometers.jpg)
Micrometer is used to measure the diameter of object such as wires, steel balls etc. It was first made in 19th century.
It increased the accuracy and precision of measurements.