Grid Snap Points allows easy access to snap the current cursor point to nearest grid point available. This allows a user to easily jump from one point  another point on regular intervals along UCS X and Y axis. A user can also keep the Grid invisible and still have access to  its Grid Snap Points. The increments of Grid Snap Points can be changed by changing "Grid Spacing along X-Axis" and "Grid Spacing along Y-Axis" variables in Modelspace Viewport.

 

 

See Also:

Grid

Snaps Toolbar