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2. Wood auger - Wikipedia

   en.wikipedia.org/wiki/Wood_auger

   The lower edge of the blade is sharpened and scrapes the wood; the rest of the blade lifts 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. [2]

3. Boring machine (carpentry) - Wikipedia

   en.wikipedia.org/wiki/Boring_machine_(carpentry)

   Before boring machines were invented, carpenters used hand-powered augers to bore holes. Most common were T-handled augers. The shape of the drill bits changed over time, with the spoon bit and shell bit being common before the invention of the spiral or twist bit in 1771 [1] which removes the cuttings as it turns.

4. Brace (tool) - Wikipedia

   en.wikipedia.org/wiki/Brace_(tool)

   A brace and bit can be used to drill wider and deeper holes than can a geared hand-powered drill. The cost of the greater torque is lower rotational speed; it is easy for a geared hand drill to achieve a rotational speed of several hundred revolutions per minute, while it would require considerable effort to achieve even 100 rpm with a brace.

5. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   General-purpose drill bits can be used in wood, metal, plastic, and most other materials. ... Similar auger bits are made with diameters from 6 mm (3/16 in) to 30 mm ...

6. Gimlet (tool) - Wikipedia

   en.wikipedia.org/wiki/Gimlet_(tool)

   A gimlet is a hand tool for drilling small holes, mainly in wood, without splitting. It was defined in Joseph Gwilt's Architecture (1859) as "a piece of steel of a semi-cylindrical form, hollow on one side, having a cross handle at one end and a worm or screw at the other".

7. Milwaukee Tool - Wikipedia

   en.wikipedia.org/wiki/Milwaukee_Tool

   By 1935, Milwaukee Electric Tool Corporation developed a lightweight 3/4" electric hammer drill. This power tool was designed to drill and sink anchors into concrete. This drill could also be converted into a standard 3/4" drill. Milwaukee also designed an easy-to-handle, single-horsepower sander/grinder that weighed only 15 pounds. [7]