auger (redirected from auger shells)

auger (ô`gər): see drill.

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auger

Tool (or bit) used with a carpenter's brace for drilling holes, usually in wood. It looks like a corkscrew and produces extremely clean holes, almost regardless of how large the bit is. Expansive auger bits have adjustable blades with cutting edges and spurs that can be extended radially to cut large holes. Large augers are used to bore holes in soil for fence posts and telephone poles, or in ice for ice fishing. Horizontal augers as much as 8 ft (2.5 m) in diameter are used in coal mining.

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auger

1. a hand tool with a bit shaped like a corkscrew, for boring holes in wood

2. a larger tool of the same kind for boring holes in the ground

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auger [′ȯ·gər]

(design engineering)

A wood-boring tool that consists of a shank with spiral channels ending in two spurs, a central tapered feed screw, and a pair of cutting lips.

A large augerlike tool for boring into soil.