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2. Drill press - Wikipedia

   en.wikipedia.org/wiki/Drill_press

   Column drill press is a common type characterized by the fact that the drill spindle can be moved up and down axially ("along a column"), and has a height-adjustable table, usually adjustable via a rack and pinion. They often used with a vise holding the workpiece, and the vice is again clamped to the table. The vice has to be moved in order to ...

3. Walker-Turner - Wikipedia

   en.wikipedia.org/wiki/Walker-Turner

   In 1942, Walker-Turner released its first Radial Arm Drill Press, the RD-1170. [1] 900 Series Drill Press, Serial # 1 944. Through 1942-1945, during the years of the United States' involvement in World War II, much of Walker-Turner's production capacity was focused on the war effort. Catalogs and other documentation from this period may be scarce.

4. Magnetic drilling machine - Wikipedia

   en.wikipedia.org/wiki/Magnetic_drilling_machine

   A morse taper 3 arbor equipped magnetic drill machine using taper shank drill bits. The arbor or chuck on a magnetic drill is attached to the motor. It is a type of clamp used to attach the core drills. There are mainly two types of chuck available for the magnetic drill, industrial arbor (manual tightening) and quick change drill chucks.

5. Rotary table (drilling rig) - Wikipedia

   en.wikipedia.org/wiki/Rotary_table_(drilling_rig)

   A rotary table is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the drill string to facilitate the process of drilling a borehole. Rotary speed is the number of times the rotary table makes one full revolution in one minute (rpm).

6. NFL on Christmas Day: 4 AFC playoff-bound teams provide a ...

   www.aol.com/sports/nfl-christmas-day-4-afc...

   Before 1989, the only time the NFL played on Christmas was a pair of playoff games in 1971. The NFL adjusted its schedule when Christmas fell on a Sunday to avoid holding games on that day.

7. Top drive - Wikipedia

   en.wikipedia.org/wiki/Top_drive

   The top drive allows the drilling rig to drill the longer section of a stand of drill pipe in one operation. [1] A rotary table type rig can only drill 30-foot (9.1 m) (single drill pipe) sections of drill pipe whereas a top drive can drill 60–90-foot (18–27 m) stands (double and triple drill pipe respectively, a triple being three joints of drillpipe screwed together), depending on the ...