Wood auger
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An auger is a device to drill wood or other materials, consisting of a rotating metal shaft with a blade at the end that scrapes or cuts the wood.
Small twist auger, also called a Gimlet, with wood handle
Study of a man using an auger, from The Seven Sorrows of the Virgin, by Albrecht Dürer, c. 1496.
Painting by Georges de La Tour of St. Joseph operating an auger.
Drill bit
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A drill bit is a cutting tool used with a drill to remove material and create holes, typically with a circular cross-section. Drill bits are available in various sizes and shapes, designed to produce
Wood auger
…the chips out of the way. It is powered with two hands, by a T-shaped handle attached to the top of the shaft. More modern versions have elaborated auger bits with multiple blades in various positions. Modern versions also have different means to drive the shaft, resulting in various tools such as braces…
From top: Spade, brad point, masonry, and twist drills bits
A set of masonry drills
Titanium nitride coated twist bit
Diamond-coated 2 mm bits, used for drilling materials such as glass