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Using lapping, optical polishing, single point diamond machining and low stress grinding and honing, Surface Finishes provides angstrom-level tolerances on prototype or production components, such as mirrors for optical imaging and scanning, air bearings, optical disc molds, large area reference surfaces and custom gauging. Since 1949, Surface Finishes has pioneered precision lapping, grinding and optical polishing techniques specializing in flat, cylindrical, perpendicular and parallel surfaces with extremely demanding geometry.