Sample for the outer diameter of 10mm ring samarium cobalt rare earth magnets, the hole in the center is a straight hole, can also be processed into sunken holes (screw holes), the inner diameter of 4mm, height 4mm, because of its own good corrosion resistance so there is no plating, but also can be and neodymium magnets to do the surface treatment, welcome to the factory to buy in bulk.
Other 10mm ring samarium cobalt;
SmCo countersunk magnet ring 10mm diameter 10mm thick
Heat resistant smco magnet ring 10mm x 6mm x 5mm
Samarium Cobalt Knowledge Articles;
Magnetization and processes of SmCo rare earth permanent magnets