Profile: Midland Metrology Ltd specializes in offering new and used optical profile projectors. We also offer measuring, inspection, test and calibration equipments. Profile projectors with screens 12 inches/300 mm, 14 inches/350 mm or 16 inches/400 mm diameter are available with sophisticated electronics with geometric measurement functions including the calculation of radius, diameter angles. Projectors are also available with simple conventional digital displays. Rockwell hardness testing is suitable for measuring the hardness of ferrous, non-ferrous metals and plastic materials. It is commonly used in factories, scientific research institutes and college laboratories.