Specification:
Material | BK7 grade A, B270, UV grade Fused Silica, Sapphire etc. |
Diameter Tolerance | ±0.05 mm (Standard), up to +0.000/-0.002 mm |
Sphericity | ±0.005 mm (Standard), up to +/-0.6 um |
Surface Quality | 60-40 S/D (Standard), up to 20-10 S/D |
Coating | uncoated |