#skull drill

[charlesreeza]

A trephine used to perform one of the oldest medical procedures in human history.  The caption on the illustration points out that the operation was performed without anesthesia.

Musée Le Secq des Tournelles, Rouen

[lovebizarreoddities]

Trepanning, also known as trepanation, trephination, trephining or making a burr hole is a surgical intervention in which a hole is drilled or scraped into the human skull