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 Topic: window film
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 Rolls of window film 2014-02-14 From Travis:This question is probably close to the same question as "roll of paper" We have Rolls of Window Film that we are trying to figure out an equation for a spreadsheet that we can use to "inventory" our window film. We use a caliper tool to measure the thickness of the roll in millimeters. the core thickness = 1.90mm Full Roll thickness(including core) = 9.08mm to 9.12mm Film thickness = 0.06 Full Roll of Film is supposed to average 1200" of film What equation could we use to get the approximate inches left remaining on the roll if we measured the roll including the core with the Caliper tool in Millimeters?Answered by Harley Weston.

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