... to date,It has excellent properties of high remanence,coercivity,and Max.energy product. Neodyium Magnetic grade: N35,N38,N40, ... much higher than 1.67 the consisitency of surface magnetic field and magnetic flux can be controlled with +/-1% 4)High Anti ... ,acousics,communication equipment,toy,car,servomotor,step motor,DC motor and linear motor,mircrophones Pros: Very strong hold when contacting another ...