Masar Convex Domed Glass Clock & Barometer Ø 240mm to 330mm Thickness 2.0mm - 1 Pc

Round, convex watch and clock crystals , 2.0 mm thick, ideal for barometers and other applications. These convex crystals have an outwardly curved surface. Available in traditional imperial sizes with a tolerance of +/- 1/16th.

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

Tip: For barometer glasses requiring holes, use diamond drill bits. For maximum accuracy, use steel calipers rather than plastic ones. Remember to add 0.1 mm if using plastic calipers.