A drill is a tool with a rotating drill bit used for drilling holes in various materials. Drills are commonly used in woodworking and metalworking.

The drill bit is gripped by a chuck at one end of the drill, and is pressed against the target material and rotated. The tip of the drill bit does the work of cutting into the target material, slicing off thin shavings (twist drills or auger bits) or grinding off small particles (oil drilling).

History

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The earliest drills were probably bow drills. The invention of the electrical drill is credited to both Arthur James Arnot in 1889, at Melbourne, Australia and Wilhelm Fein [http://www.fein.de/corp/de/en/company/history.html, in 1895, at Stuttgart, Germany. In 1917, Black & Decker patented a trigger-like switch mounted on the handle.

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Golf Tips, Lessons, Instruction & Drills – Proper Backswing ...: In this video golf lesson instructor Steve Bisho... http://bit.ly/6zIh2a
GolferAnn (Ann Loughlin) Sun, 03 Jan 2010 10:21:26 -0000
Golf Tips, Lessons, Instruction & Drills – Proper Backswing ...: In this video golf lesson instructor Steve Bisho... http://bit.ly/6zIh2a
Golf Tips, Lessons, Instruction & Drills – Proper Backswing ...: In this video golf lesson instructor Steve Bisho... http://bit.ly/6zIh2a
Golfteach_vidal (Leonard Vidal) Sun, 03 Jan 2010 10:21:26 -0000
Golf Tips, Lessons, Instruction & Drills – Proper Backswing ...: In this video golf lesson instructor Steve Bisho... http://bit.ly/6zIh2a
BUT, i gotta call it a night . gotta wake up at 9 for basketball training/drills at the gym with the homie; i'ma be kickin myself tmrw x_x
cakesterr (Cortney Cooper) Sun, 03 Jan 2010 09:12:03 -0000
BUT, i gotta call it a night . gotta wake up at 9 for basketball training/drills at the gym with the homie; i'ma be kickin myself tmrw x_x
Hinky: I will not conduct my own fire drills
BOTHOUSE (BOT House) Sun, 03 Jan 2010 09:11:01 -0000
Hinky: I will not conduct my own fire drills
Share price ( DES.L): If after a couple of drills Desire announced that they had found oil.......and they put the quantity at approx 25...
iiidiscussion (interactiveinvestor) Sun, 03 Jan 2010 09:06:31 -0000
Share price ( DES.L): If after a couple of drills Desire announced that they had found oil.......and they put the quantity at approx 25...
@ballergirl34 Better start getting serious and working on all aspects of the game then. Start doing quickness and agility drills, too.
Darleeeeeee (Daryl Hatfield III) Sun, 03 Jan 2010 09:02:19 -0000
@ballergirl34 Better start getting serious and working on all aspects of the game then. Start doing quickness and agility drills, too.

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