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2. Hammer drill - Wikipedia

   en.wikipedia.org/wiki/Hammer_drill

   A corded hammer drill next to a drill bit and a chuck key. A hammer drill, also known as a percussion drill or impact drill, is a power tool used chiefly for drilling in hard materials. [1] [2] It is a type of rotary drill with an impact mechanism that generates a hammering motion.

3. Drilling rig - Wikipedia

   en.wikipedia.org/wiki/Drilling_rig

   An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry. [8] ADRs are agile rigs that can move from pad to pad to new well sites faster than other full-sized drilling rigs. Each rig costs about $25 million.

4. Oil well - Wikipedia

   en.wikipedia.org/wiki/Oil_well

   The production stage is the most important stage of a well's life: when the oil and gas are produced. By this time, the oil rigs and workover rigs used to drill and complete the well will have moved off the wellbore, and the top is usually outfitted with a collection of valves called a Christmas tree or production tree. These valves regulate ...

5. 10 of the Most Expensive Items Ever Sold on eBay

   www.aol.com/10-most-expensive-items-ever...

   Related: The Most Expensive Celebrity Homes of All Time. the ghost town of albert, texas. 5. Albert, Texas. Sold for: $2.5 million.

6. Offshore drilling - Wikipedia

   en.wikipedia.org/wiki/Offshore_drilling

   The first offshore drillship was the CUSS 1 developed for the Mohole project to drill into the Earth's crust. [13] As of June 2010, there were over 620 mobile offshore drilling rigs (jackups, semisubs, drillships, barges, etc.) available for service in the worldwide offshore rig fleet. [14]

7. Drill - Wikipedia

   en.wikipedia.org/wiki/Drill

   The design of the impact drills are almost identical to modern pistol grip power drills with only one major difference. Impact drills have a shorter, skinnier, stubby receiver where the collet is located compared to the larger tapered chuck on a conventional drill. This allows the user to fit in smaller places that a normal drill would not ...