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The Different Types of Drill Bits

Learn about the basic types of drill bits used for wood, metal and masonry.

Excerpted from Do It Yourself Home Improvement

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© 2007 Dorling Kindersley Limited

Auger Drill Bits

These cut large, deep accurate holes. The spiraling shaft comes to a fine, threaded point. Carbon-steel bits are best and can be resharpened.

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