Our 12mm (0.47") thick magnets are available in a variety of diameters ranging from just 3mm (0.12") diameter to 8mm (0.31") diameter. Our 3mm (0.12") diameter neodymium rod magnets are diametrically magnetized which means their north and south poles are on opposite curved faces. They are designed not to provide the maximum pull strength but to provide rotational movement. The regular neodymium magnets in this section provide an impressive magnetic pull from a relatively small pole area and are ideal for applications where maximum strength is required from a small magnet.