trepanner
nounEtymology From trepan + -er.
1
A person who trepans.
- [I]n the year 1000 the trepanner had at his disposal the semi-mechanical bow drill that was used by carpenters and masons of the time.1999, Robert Lacey, Danny Danziger, The Year 1000: What life was like at the turn of The First Millennium, London: Abacus, published 2000, page 124:
2
A trepanning tool.