FIRST4MAGNETS Magnet Expert® 50mm dia x 10mm thick x 8.5mm hole Ferrite Pot Magnet - 15.8kg Pull (Pack of 20)

Product Description Outstanding value for money, these ferrite pot magnets are made of a ferrite magnet sunken in to a steel shell meaning that the north pole is on the centre of the magnetic face and the south pole is on the outer edge around it. The steel pot increases the adhesive force of the magnets giving them a strong hold for their size. An added advantage of pot magnets is that they are resistant to chipping or cracking following constant impact with a steel surface. These magnets come with a safe-handling warning; because they are so powerful they can be dangerous if not handled carefully. Box Contains 20 x 50mm dia x 10mm thick x 6.5mm hole Ferrite Pot Magnet - 15.8kg Pull