drill string

Prince may have pranced around like a carefree libertine onstage, but in rehearsal he was more drill sergeant than sprite.
Speed Read: The Juiciest Bits From the History of ‘Purple Rain’|Jennie Yabroff|January 1, 2015|DAILY BEAST
The plot was a string of anecdotes from the senseless shootings of friends that Brinsley knew.
Alleged Cop Killer’s Blood-Soaked Screenplay|M.L. Nestel|December 24, 2014|DAILY BEAST
As I forced my exhausted body to exercise, I yelled at my legs like a drill sergeant, demanding five more minutes or one more set.
You’re Never ‘Cured’ of an Eating Disorder|Carrie Arnold|December 20, 2014|DAILY BEAST
For example, studies cited in the report have shown a higher incidence of birth defects for people living near drill sites.
New York’s Conservative Fracking Ban|Jay Michaelson|December 20, 2014|DAILY BEAST

And the string of episodes that aired before that were gripping, noble, and simply entertaining to watch.
'The Newsroom' Ended As It Began: Weird, Controversial, and Noble|Kevin Fallon|December 15, 2014|DAILY BEAST
Aristide replaced the baby, and with a complicated arrangement of string fastened it securely to the seat.
The Joyous Adventures of Aristide Pujol|William J. Locke
Who has patience for the recapitulation of a string of names, when a group of faces may be placed simultaneously before him?
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
This harmless image of a fierce beast Yung Pak would pull about the floor with a string by the hour.
Our Little Korean Cousin|H. Lee M. Pike
She plays with Captain Lovelock as a child does with a wooden harlequin, she pulls a string and he throws up his arms and legs.
Confidence|Henry James
He could lie in bed and string himself tales of travel and adventure while Harry was downstairs.
Kipling Stories and Poems Every Child Should Know, Book II|Rudyard Kipling

British Dictionary definitions for drill string

drill string

drill pipe

noun

(in the oil industry) a pipe made of lengths of steel tubing that is attached to the drilling tool and rotates during drilling to form a bore

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012