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Published byAxel Nasby Modified over 10 years ago
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Brian Briggs Community Colleges of Spokane
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#1: Rulers There are three types of rulers for machinists: Flex Rules Spring and Hook Rules Ground or Rigid Rules
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Rulers Flex Rules: Thin and flexible. 6, 12, or 18 inches They are universal tools. These rulers can help you double-check your work.
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How to Use a Ruler Please watch the video below. http://www.youtube.com/watch?v=RFoXIsk y2cY
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Rulers Spring and Hook Rulers Adjustable
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Rulers Ground or Rigid Rules 12, 18, 24, and 36 inch sizes The picture on the right shows a ruler with a square, a protractor, and a centering head.
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#2: Calipers Vernier Calipers--still used in schools because they are very strong and easy to use. Industry still uses the longer 18-inch Vernier calipers. Dial Calipers Electronic Calipers
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Calipers Zero Dial (Digital)
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#3: Outside Micrometers Carbide-wear tips Insulated handle Tenths of an inch scale on sleeve
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How to Read a Standard Micrometer Please watch the video below.
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#4: Height Gages This tool is used for both measuring and layout work. It measures how tall something is. A height gage sits on a flat surface (such as a table) and measures up.
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#5: Indicators Both types are precise and delicate. They measure 1/1,000 or 1/10,000 Probe type: small and versatile Travel type: more sturdy and measure greater ranges.
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Vocabulary Probe \ ˈ prōb\ (noun) Caliper \ ˈ ka-l ə -p ə r\ (noun) Attachment \ ə - ˈ tach-m ə nt\ (noun) Micrometer \mī- ˈ krä-m ə -t ə r\ (noun) Zero \ ˈ zē-( ˌ )rō\ 0, 1, 2, 3, 4…
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Vocabulary Dial \ ˈ dī(- ə )l\ (noun) dial indicator Indicator \ ˈ in-d ə - ˌ kā-t ə r\ (noun) indicate (v) Specialized (adj) special, specialize \ ˈ spe-sh ə - ˌ līz\(v) Rigid \ ˈ ri-j ə d\ (adj) rigidity Ruler \ ˈ rü-l ə r\ (noun)
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Vocabulary Accuracy \ ˈ a-ky ə -r ə -sē\ (noun) accurate (adj) Scale \ ˈ skāl\ (noun) Height \ ˈ hīt\ (noun) Metric \ ˈ me-trik\ (adj) Precision \pri- ˈ si-zh ə n\ (noun), precise \pri- ˈ sīs\ (adj)
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Now… Ask your teacher or classmates about any words you dont understand. Finish the assignments and quizzes for this lesson. Unless otherwise specified, this work by Air Washington is licensed under a Creative Commons Attribution 3.0 United States License.Air WashingtonCreative Commons Attribution 3.0 United States License
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