Temporary Adjustment T-square
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T—squares can be temporarily adjusted by putting the thumb tack in the head as illustrated. This is used when the previous work does not align with the T-square.
Keywords
mechanical drawing, T-square, Tsquare, t squares, Temporary Adjustment T-square using Thumb tackGalleries
Mechanical Drawing ToolsSource
French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)
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