... IC plate fitted, automatic timing (0-5 minutes).Size of buffing wheel: O. D. 115(ma*), Thickness :10 mmPowerful motor with ... edging, trimming, polishing.Big power; high speed rotating grinding wheel, fast grinding.3wheels operating together,35mm of rough grinding, fine ... grinding, edge groove grinding, and 1 piece of polishing cloth wheel.It has auto water-supply system, facilitate water drainage. ...