1.This kind of small electric grinder is designed rationally which are widely used in dental processing , repairing and grinding false teeth , nail cosmetology , mould developing and grinding , cutting and polishing as well as in the fields of metal machine and machinery production

2.The small electric grinder has the advantages of strong locking power ,vibrations ,low horizontal motion and operating noisem balanced revolving speed and stable power output ,using safe 12v D.C.motors ,It is aslo can be used through 12v battery and 110v/220v electric power directly ,for the sake of your convenience  

3.Make sure fix the head before using under the circumstance of turning off(the diameter of the head should be less than 8mm),it is can be used after pressing the brake pin,locking the hesd by spanners and putting through the power lastly

4.Make sure be concetric uprightness,or affect regular vibration and the quality of process,besides cause premature failure of the samll electric grinder

5.Don't overexert it , or it will cause  the resuction of the revolvingspees,you should resuce exertion in order to avoid the damage of electric machinery

6.Turn off the power after working in order to extend the machine;s life ,Keep it clean and put it into a  dry palce under the circumstance of ventilation