This 2 piece drill comes from the so-called De Meern 1 ship, which was wrecked in a tributary of the Rhine around the year 190 AD. It consists of a handle and a rotating mower part which
holds the iron drill bit and was driven using bow and string.
Jansma, Esther. Een Romeinse Rijnaak, gevonden in Utrecht-De Meern. Amersfoort, 2007.