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2. Magnetic drilling machine - Wikipedia

   en.wikipedia.org/wiki/Magnetic_drilling_machine

   An ironworker using a portable magnetic drill on a steel I-beam. A portable magnetic drilling machine is faster and more portable alternative to hole making machines such as the drill press, and is more accurate than a hand drill. A portable magnetic drilling machine is used on steel or other magnetic materials.

3. Jig borer - Wikipedia

   en.wikipedia.org/wiki/Jig_borer

   Although capable of light milling, a jig borer is more suited to highly accurate drilling, boring, and reaming, where the quill or headstock does not see the significant side loading that it would with mill work. The result is a machine designed more for location accuracy than heavy material removal.

4. Drill press - Wikipedia

   en.wikipedia.org/wiki/Drill_press

   Benchtop drill press (left) and floor-standing drill press (right) A drill press is a drilling machine suitable for quick and easy drilling of straight holes, countersinking or counterboring that are perpendicular to both directions of a table surface. In comparison, it is more difficult and less repeatable to drill perpendicularly with a hand ...

5. Reamer - Wikipedia

   en.wikipedia.org/wiki/Reamer

   Chucking reamers, or machine reamers, are the most common type of reamer used in lathes, drill presses, and screw machines that provide a smooth finish to the hole. They come in a variety of flutes and cuts (e.g. right hand cut, left hand spiral, straight flute) as well as different shank types.

6. Walker-Turner - Wikipedia

   en.wikipedia.org/wiki/Walker-Turner

   Benchtop Walker-Turner Drill Press. Walker-Turner Co. was founded around the end of the 1920s by Ernest T. Walker and William Brewer Turner, who built machines for home and light industrial use. It was acquired by Rockwell Manufacturing Co. in 1956 and Walker-Turner branded machines continued to be sold into the 1960s.

7. Drilling - Wikipedia

   en.wikipedia.org/wiki/Drilling

   When cutting aluminum in particular, cutting fluid helps ensure a smooth and accurate hole while preventing the metal from grabbing the drill bit in the process of drilling the hole. When cutting brass, and other soft metals that can grab the drill bit and causes "chatter", a face of approx. 1-2 millimeters can be ground on the cutting edge to ...