There are 2", 4" and 6" sapphire crystal rods with different crystal directions and different processing precision in batches.
(C-A) Â±0.1Â° / (C-M) Â±0.1Â°
Primary flat length
16.0 Â±0.5mm, 30.0 Â±0.5mm and 47.5 Â±0.5mm
40mm to 180mm
fine ground or as request