The grade N52 is the highest grade available for the neodymium magnets on the market. They are the strongest neodymium magnets you can find so far. BUYNEOMAG offers various N52 neodymium magnets to our customers and keeps adding more items. Place your order now or come back to visit us for new arrivals.Neodymium magnets in grade N52. More powerful than grade N42 magnets of the same size.