Wafer Fused Silica Ø125mm Ep.0.5mm flat
Material : Corning 7980 UV Grade Fused Silica equivalent to 2G quality,
Dimensions : 125mm +/- .2mm diameter x .5mm +/- .025mm thick
4.92'' +/-.00787'' diameter x .0197'' +/- .00098'' thick,
With reference flat measuring 42.5mm +/-2.5mm(=1.67'' +/- .098'') long