Creating unusual and attractive finishes on jewelry by using diamond tools has become a popular and highly profitable operation. A matte, satin or florentine background is applied to the piece using sand blasting, satin buffs or florentine burs. Then, a bright cut is obtained using these diamond flywheels, giving you the ability of creating designs at will. It is recommended that speeds 35,000 r.p.m. or more be used with diamond flywheels to obtain a clean cut and extend the life of the diamond tool.