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2. Hughes Tool Company - Wikipedia

   en.wikipedia.org/wiki/Hughes_Tool_Company

   The company was established in December 1908 [1] as Sharp-Hughes Tool Company when Howard R. Hughes Sr. patented a roller cutter bit that dramatically improved the rotary drilling process for oil drilling rigs. He partnered with longtime business associate Walter Benona Sharp to manufacture and market the bit.

3. Tumbler knife sharpener review, after weeks of testing - AOL

   www.aol.com/news/tumbler-knife-sharpener-review...

   Tumbler Knife Sharpener $129.00 at Amazon. Tumbler Knife Sharpener $98.00 at Tumbler. The Tumbler knife sharpener ($129) is a manual knife sharpener with two components: a two-sided rolling disc ...

4. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   While the above is a common use of center drill bits, it is a technically incorrect practice and should not be considered for production use. The correct tool to start a traditionally drilled hole (a hole drilled by a high-speed steel (HSS) twist drill bit) is a spotting drill bit (or a spot drill bit, as they are referenced in the U.S.). The ...

5. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   homepage.aol.com

   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

6. Drill bit shank - Wikipedia

   en.wikipedia.org/wiki/Drill_bit_shank

   Large drill bits can have straight shanks narrower than the drill diameter so that they can be fitted in chucks not able to chuck the full diameter. Such a drill bit is called a reduced-shank or blacksmith's drill. For example, this allows a 1 ⁄ 2-inch (13 mm) bit to be used in a pistol-grip drill's 3 ⁄ 8-inch (9.5 mm) chuck.

7. Knife sharpening - Wikipedia

   en.wikipedia.org/wiki/Knife_sharpening

   Knife sharpener in Kabul, Afghanistan (1961) The Knife Grinder by Massimiliano Soldani (c.1700), Albertinum, Dresden A railway camp cook sharpens a knife blade on a stone wheel, 1927 Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard , rough surface, typically a stone , [ 1 ] or a flexible surface ...

8. Goodell-Pratt - Wikipedia

   en.wikipedia.org/wiki/Goodell-Pratt

   Goodell-Pratt was a tool manufacturing company based in Greenfield, Massachusetts. The company was founded in 1888 as the Goodell Brothers Company by Albert and Henry E. Goodell, and was located in Shelburne Falls, Massachusetts. [2] Goodell-Pratt plant in Greenfield, Massachusetts, January 1912.

9. Cranial drill - Wikipedia

   en.wikipedia.org/wiki/Cranial_drill

   The rotating crank is typically connected to several cogs that set pressure on the skull. This specific drill is not connected to any external power and is used very little in today's operations. [9] The manual cranial drill is the most used and predominant type of drill in surgery, and performs manually. It has an adjusted stopper based on the ...