screw auger

noun

1. an auger having a helical outer surface suggesting a screw thread.

Word History and Origins

Origin of screw auger¹

An Americanism dating back to 1785–95

Example Sentences

A screw auger has a twisted blade, by the spiral groove of which the chips are discharge.

From Project Gutenberg

Fortunately I had purchased at Khartoum an English screw auger 1 1/4 inch in diameter, and this tool I had brought with me, foreseeing some difficulties in boating arrangements.

From Project Gutenberg