Convex Curved Clock & Barometer Glasses - Thickness 2.0mm - Ø 52.0mm to 75.0mm - Round Mineral Glass

Round convex domed watch and clock glass , 2.0mm thick, ideal for barometers and other applications. These convex shaped glasses feature an outward curved surface. Available in traditional imperial size with a tolerance of +/- 1/16th.

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

Tip: For barometer lenses requiring holes, use diamond drill bits. For maximum accuracy, use a steel caliper rather than a plastic one. Remember to add 0.1 mm if using a plastic caliper.