Metal Edge Ruler (A)

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This extra-long ruler comes highly recommended by conservators. The heavy gauge, clear acrylic construction features internal markings that are very useful. One edge is bevelled, the other features a steel edge which keeps the acrylic from being nicked by sharp rotary cutters or scalpel blades when cutting against it, keeping the ruler itself accurate. The ruler is 500mm long, graduated in sixteenths of an inch with a 0 centreing scale. Calibrations and grids are visible on both light and dark surfaces.