Lot 25 50 100 Pcs Round Disc Magnets Rare Earth Neodymium Magnet N50 N48 N52 N42

N42/N48/N50/N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break.