DIAMETER: 0.500″+/-.002″
THICKNESS: 0.040″+/-.002″
PARALLELISM: 0.001″/INCH MAXIMUM T.I.R.
EDGE BEVEL: NONE, EDGES MUST BE SHARP.
FLATNESS: 10 WAVES/INCH MAXIMUM, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.