History of Lapping Machine

Lapping is the process of rubbing two surfaces together with a #lappingmedium (Lapping fluid and Lapping Grit) between them.

Stone age man (fig-1) used the process of lapping in preparing their tool and implements to the extent that they drilled holes in a work piece by rotating sticks on it sand strewn surface.

A sketch as shown above (fig-2) from the German Museum in Munich, which has illustrated a probable early “Lapping Machine”