BEXCO SPHEROMETER (Single Disc).(Multicolor)

t consists of a small metal frame, supported by three legs fixed at the corners of an equilateral triangle. A screw of fine pitch passes through the center of the metal frame. The screw forms the fourth leg. The main scale (or pitch scale) is marked in a metal strip fixed at right angles to the frame. Spherometer scale is marked in millimeters with zero mark at the center (10-0-10 mm) circular scale is fixed to the screw head.