Neodymium-Iron-Boron( NdFeB ) magnets are the most powerful and advanced commercialized permanent magnets today. Since made from Neodymium , one of the most plentful rare earth elements, and inexpensive iron , NdFeB magnets offer the best value in cost and performance.
Wide range of grades with new ones regularly being developed.
Available from very small size to large blocks.
Relatively easy to machine ,compare to Alnico and SmCo magnets .
High resisitance to demagnetization.