Samarium Cobalt is manufactured using powder sintering technology and is sintered using special tooling into standard disc, rings and block shapes.
These can then be cut into smaller magnets or ground to tight tolerances using diamond cutting tools.

Samarium Cobalt (SmCo) the one of the most powerful magnets per unit volume and is used where ever a small size, maximum power and high temperatures are needed.

Strengths - High flux density, high resistance to being demagnetised, high power to weight ratio. Medium temperature resistance.

Weaknesses - high cost

A common grade is SM27H and it has the following properties