... made dimension Precise tolerance Neodymium Rare Earth Block Magnets with holes, N35,N38,N40,N42,N45,N48,N50,N52.. ... and high intrinsic coercive force.6, With precise tolerance.Application for Neodymium magnet:Magnetic separator, Sensors, Wind generators, ... household appliances,microphone parts,transmission equipments...Features of Neodymium magnet :Neodymium magnets are mainly made from neodymium ,iron, ...