Profile: Opus Metrology Ltd. manufactures gauge blocks. Our products include ceramic gauge blocks, long series gauge blocks, ceramic tipped long series gauge blocks, engineer's parallels, angle gauges, monochromatic light units, optical flats and parallels, and precision balls (spheres). We also provide laser marking, precision grinding and inspection services. Ceramic tipped gauge block body is made from stabilized steel, and the tips are made from an exceptionally pure grade of zirconia ceramic material. Our long series steel gauge blocks have a standard gauge block cross-section of 35 mm x 9 mm, and are available in sizes ranging from 125 mm to 1000 mm.