Taper Gauge - 05MI083Taper Gauge, metric option 0. 2mm graduation Each has fine tip (1 32" thick) and measures up to 1 1 8" (or equivalent) thickness Made from hard anodized aluminum Accuracy achieved by effectively stretching standard scale by a factor of seven In most uses it is accurate to 0. 002"; guaranteed to have no greater error than 0. 005" in any measurement Fractional gauge uses 1 64" graduations Decimal gauge uses 0. 010" graduations Metric gauge uses 0. 2mm