Why do we use measuring tools? What tools will we use? How do we read measuring tools? Where are these tools used in industry?

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  • Why do we use measuring tools? What tools will we use? How do we read measuring tools? Where are these tools used in industry?
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  • Make measurements with rulers, calipers, and micrometers Complete a worksheet on measuring tools
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  • Measuring jigs before starting a job While working on a job To check dimensions after completing a job
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  • Least Precise Accuracy of 1/16 (.0625) Used on large items and non-precision work Available in various lengths
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  • Divided into increments of 1/16 (standard) * sometimes smaller Metric on the opposite side Bold numbers indicate inches
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  • Accuracy of.001 0 6, 0 12, 0 36 Used on precision jobs Measures Outside Diameters, Inside Diameters, And Depths
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  • 1.Dial 2.Jaws 3.Nibs 4.Bar 5.Clamp Screw
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  • Each increment on the bar represents.100 Each round on the dial equals.100 or.200 Depending on the brand of the tool Bold numbers on the dial represent.010 Small dashes equal.001
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  • Most accurate Accuracy of.0001 Available in various sizes, from 0 1 up to 35 36 Used to measure Outside Diameters
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  • thimblesleeve anvil spindle frame
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  • 1.Frame 2.Thimble 3.Sleeve 4.Spindle 5.Anvil
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  • 0 1 2 3 4 5 6 7 8 9 15 16 17 18 14 13 19 15 17 16 14 13 18 15 0 1 2 3 Smallest Measurement 0.000 Largest sleeve reading 0.300 One mark past largest sleeve reading 0.025 Thimble Reading 0.016 0.341 inches
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  • Serves the same purposes as conventional Calipers and micrometers Easier to read due to digital read-out Usually more expensive
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  • Get out a sheet of paper...
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  • Name the following tools : 1. 2. 3. 4.
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  • 5.What tool is the most accurate? 6.What tool is the least accurate? 7.What are the three things calipers are used to measure? 8.Why do we use measuring tools?
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  • Name this tool: 9. 10.What is one job that uses measuring tools that we discussed?
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  • Name the 5 parts of the calipers. 1 point each Name the 5 parts of the micrometer. 1 point each