auger

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For more information on auger, visit Britannica.com.

1. A hand-held carpenter’s tool for boring holes in wood, similar to, but larger than, a gimlet; has a long steel bit usually not larger than 1 in. (25 mm) in diameter.
2. A rotary drill, usually powered, for cutting circular holes in earth or rock.

Tutor's tip: An ordinary person cannot "augur" (predict, foreshadow) what will happen tomorrow, but he or she can use an "auger" (tool for boring holes in wood) to build a birdhouse without much training.

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• Drills and Bits - auger: boring tool consisting of bit rotated by transverse handle

Not to be confused with augur, agar, or auger conveyor.

For other uses, see Auger (disambiguation).

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (June 2011)

A skid steer loader with an earth auger attachment.

Study of a man using an auger, from The Seven Sorrows of the Virgin, Albrecht Dürer, ca 1496

An auger bit in a brace for woodworking.

An auger is a drilling device, or drill bit, that usually includes a rotating helical screw blade called a "flighting" to act as a screw conveyor to remove the drilled out material. The rotation of the blade causes the material to move out of the hole being drilled.

An auger used for digging post holes is called an earth auger, soil auger, or mechanized post hole digger. This kind of auger can be a manually turned, handheld device, or powered by an electric motor or internal-combustion engine, possibly attached to a tractor (being provided with power by the tractor engine's power take-off as shown). Handheld augers can also be used for making holes for garden planting.

Construction drill auger.

Wood augers have a screw to pull them into the wood, as a gimlet has, and a cutting lip that slices out the bottom of the hole. The auger bit, meant to be used in a brace, also has cutting spurs to cut a clean circle deeper than where the lips scrape out the wood.^[1]

In construction, augers are used for special drilling rigs to dig holes for deep foundation piles. Another use is for piles forming a piling retaining wall, which can be constructed in the same way as foundation piles.

Augers – either gas- or hand-powered – are used by ice fishermen to drill holes to fish through. Drilling into maple trees to extract maple syrup is also carried out with the use of augers.^[2]

A 1905 post-hole or well auger; used for setting telephone poles

References

1. ^ George William Cox (1906). The little cyclopaedia of common things (12th ed.). S. Sonnenschein & Co.. p. 31. http://books.google.com/books?id=JUnOAAAAMAAJ&pg=PA31. 
2. ^ William M. Ciesla (2002). Non-wood forest products from temperate broad-leaved trees. Food and Agriculture Organization of the United Nations. p. 37. ISBN 92-5-104855-X. 

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Dansk (Danish)
n. - vridbor, jordbor

Nederlands (Dutch)
avegaar, grondboor, brede boor

Français (French)
n. - vrille, (Tech) foreuse

Deutsch (German)
n. - (tech.) Handbohrer, Erdbohrer

Ελληνική (Greek)
n. - (μηχαν.) γεωτρύπανο, τρυπάνι

Italiano (Italian)
trivella

Português (Portuguese)
n. - trado (m), verrumão (m)

Русский (Russian)
бурав, сверло

Español (Spanish)
n. - barrena, taladro

Svenska (Swedish)
n. - jordborr, bergborr

中文（简体）(Chinese (Simplified))
大锥, 螺丝钻

中文（繁體）(Chinese (Traditional))
n. - 大錐, 螺絲鑽

한국어 (Korean)
n. - 나사 송곳

日本語 (Japanese)
n. - 木工ぎり, オーガー

العربيه (Arabic)
‏(الاسم) مثقب, جهاز حفر الأرض‏

עברית (Hebrew)
n. - ‮מקדחה, מקדח, מכשיר לקידוח חורים באדמה‬

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