Spherometer-Double Disc

Enhanced Ergonomic Control: The secondary upper disc allows for much finer control when rotating the screw, preventing the user from accidentally applying too much pressure to the workpiece.

Precision Pitch Screw: Features a finely ground stainless steel screw with a $0.5\text{ mm}$ pitch, ensuring that every rotation results in a precise, linear vertical movement.

₹335.00

The Spherometer-Double Disc features a unique design consisting of two parallel discs. The lower disc serves as the primary graduated scale, while the upper disc acts as a “thimble” or “handwheel” for the precision screw. This double-disc configuration provides a more ergonomic grip and a more balanced distribution of weight, which is essential when making delicate contact with sensitive optical glass. Like its single-disc counterpart, it stands on three fixed legs forming an equilateral triangle, with a central micrometer screw that determines the height ( $h$ ) of the vertex of a curve.