A tool for boring a hole wider.
A tool used to scrape carbon deposit from the bowl of a pipe.
A device for rendering citrus juice.
A Stone Age prehistoric lithic stone tool, used in archeology nomenclature.
A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan.
To use a trephine during surgery.
To perforate with a trephine.