Samarium Cobalt (SmCo) magnets are composed of samarium, cobalt and iron.These rare earth magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.SmCo magnets are available in a number of different grades that span a wide range of properties and application requirements.
Machining of samarium cobalt magnets:
Samarium cobalt magnets are extremely brittle, and highly prone to chipping and cracking. Special machining techniques, involving diamond-grinding techniques, must be used to machine this material.
Magnetic and Physical characteristics is attached.