The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.
Starrett sheet metal gauge chart.
Sheet metal gauge size chart gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet.
They are also used in clearance work as precision shims a010710productphoto01filename.
Micrometers measure extremely short distances such as the thickness of a piece of sheet metal.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
The most accurate thickness.
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Gages measure height width angle radius thickness and other specific dimensions on parts.
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Standard fixed gage 0 36 3125 007 range the starrett 283 us standard gage is made to the united states standard for uncoated sheet plate iron and steel and is based on weights in ounces per square foot.
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