Thickness 2.0mm 2mm - Barometer Clock - Convex Domed Glass Ø 52.0mm to 75.0mm Mineral Round

-Round Convex Mineral Clock Glasses, Thickness 2.0mm - For barometer etc.

-Rough edge.

Convex? Describes a curved surface that curves outward, such as these parentheses ().
Inverse = concave.

Convex clock glasses are in traditional imperial size, a tolerance of plus or minus 1/16th must be allowed when ordering.

- (MMG glasses have an approximate thickness of 2.0 mm +/- 0.2 mm).

Barometer glasses requiring holes must be drilled using diamond drill bits.

• It is better to use a steel caliper and not a plastic caliper (Always add 0.1mm for plastic calipers).