Designed to take the sharpness off the edges of both sides of a piece of cut glass. There are 2 high speed emery belts set in a V to do both edges in one pass. Perfect machine to polish insulated glass before it is assembled and also tempered glass. Power: 220 Volts 60 Hz. Maximum glass size is 63″ x 85″. Belt size: 82″ x 3.5″.