full diameter drilling
51Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …
52Quecreek Mine Rescue — The Quecreek Mine Rescue took place when nine miners were trapped underground for over 78 hours, July 24 ndash;28, 2002. All nine miners were rescued.Accident and rescueOn July 24, 2002, coal miners at the Quecreek Mine in Lincoln Township,… …
53Completion (oil and gas wells) — This article is about the oil or gas well completion. For other uses of completion, see Completion (disambiguation) In petroleum production, completion is the process of making a well ready for production (or injection). This principally involves …
54Venus — This article is about the planet. For other uses, see Venus (disambiguation). Venus   …
55Splitting maul — Woodsplitting maul Other names Wood maul Wood mall Block Buster (Typically used throughout Australia and New Zealand) Classification Hand tool Related Sledge hammer …
56Second Avenue Subway — Planned route of the NYC Subway Second Avenue Line ( T , in teal). Overview Type Rapid transit System …
57Cylindrical grinder — The cylindrical grinder is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to… …
58Snowhill — Infobox building building name = Snowhill caption = A view of Phases 3 and 4 from St. Chad s Cathedral building type = Hotel, residential, office and retail architectural style = Postmodern structural system = location = Snow Hill Queensway,… …
59Spirit rover — (MER A) Artist s concept of Rover on Mars Operator NASA Mission type Rover Launch date …
60Gun drill — Gun drills are straight fluted drills which allow coolant (either compressed air or a suitable liquid) to be directed through the drill s body, directly to the cutting face. They are used for deep drilling of which gun barrels are the obvious… …
