Portable hardness tester with magnetic clamping base for Rockwell, Superficial Rockwell, Brinell and Vickers methods. The first portable hardness tester that conforms to ASTM E-18 E-10 E384 and ISO 6508 6507 6506 international hardness standards. RSD MAG is a digital portable hardness tester with a manual drive for an automatic test cycle with hardness direct reading. Thanks to its magnetic clamping base it is possible to perform hardness tests on very bulky samples directly in the production department. It is completely uninfluenced by direction so that it is operative up to 360° degrees of positioning, even upside down. Load forces are applied through a dynamometric load cell which eliminates problems associated with dead weight systems on traditional testers. It is not affected by any external source of vibration, and it does not need to be leveled. Safe clamping on any surface, from round to flat, with self-allignment of the indenter with the measurement axis. LCD screen, user friendly interface, real time statistics and graphs and large archive storage. This hardness tester ensures the highest accuracy and repeatability at every measurement. Hardness tests in laboratory or in loco on tubes, profiles, valves and bulky or small pieces. For all metals: iron, steel, tempered steel, cast iron, brass, aluminum, copper and metal alloys. Heat treatment, hardening, nitriding, cementation and hardfacing.