Magcraft NSN0586 1/2-Inch by 1/7-Inch by 1/8-Inch Rare Earth Ring Magnets, 12-Count

Neodymium iron boron (NdFeB) rare earth magnets
Grade - N40
Dimensional tolerance - +/-0.005 Inch
Plating - nickel-copper-nickel
Maximum working temperature - 176-Degree Fahrenheit (80-Degree Celsius) Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These countersunk ring magnets are 0.500 inch (12.7mm) outside diameter, 0.150 inch (3.8mm) inside diameter and 0.125 inch (3.2mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magneti More »