An unusual feature of the auger was that it had no ability to break the core from the ice: on completion of a drilling run, the auger was removed from the hole and a cylinder fitted with spring-loaded core dogs was inserted.
It had no ability to break the core from the ice. An unusual feature of the auger was this. The auger was removed from the hole. This was on completion of a drilling run. The auger was removed from a cylinder fitted with spring. This was on completion of a drilling run. Loaded core dogs was inserted.