The SMCO5 3X4MM is a 4 x 3mm Samarium-Cobalt Permanent Magnet is produced by sintering and can only be processed by grinding, due to the strength and brittle of the material. This SmCo magnet has the highest energy density per volume, weight and also the best de-magnetizations resistance. Very small magnets can be produced. It has especially good magnetic properties concerning stability and energy product. Designed according to DIN 17410 standard.