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  2. 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.

  3. Annular cutter - Wikipedia

    en.wikipedia.org/wiki/Annular_cutter

    An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape , cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.

  4. Drill - Wikipedia

    en.wikipedia.org/wiki/Drill

    A magnetic drill is a portable machine for drilling holes in large and heavy workpieces which are difficult to move or bring to a stationary conventional drilling machine. It has a magnetic base and drills holes with the help of cutting tools like annular cutters (broach cutters) or with twist drill bits. There are various types depending on ...

  5. 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 ...

  6. Magnetic switchable device - Wikipedia

    en.wikipedia.org/wiki/Magnetic_switchable_device

    A magnetic switchable device (often called a magnetic base) is a magnetic fixture that uses one or more permanent magnets in a configuration that allows the external field to be turned on or off. They are used in many applications including optics, metalworking, lifting, and robotics, to attach items to metal surfaces in a secure but temporary way.

  7. Rail drilling machine - Wikipedia

    en.wikipedia.org/wiki/Rail_drilling_machine

    Some compact low height magnetic drilling machines are ideal to clamp inside the profile of rail track and make holes. [1] These machines are suitable for use inside railway workshop. A heavy duty magnetic drilling machine can also be used for drilling railway tracks in a workshop considering the size of the magnet fits in the profile of rail ...

  8. Trump's Tariffs on Steel and Aluminum Are Bad News for ... - AOL

    www.aol.com/news/trumps-tariffs-steel-aluminum...

    Steel and aluminum imports to the U.S. were valued at nearly $50 billion in 2024, ... They are also corrosion-resistant, which makes them essential to offshore drilling operations. Aluminum, which ...

  9. Drill press - Wikipedia

    en.wikipedia.org/wiki/Drill_press

    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-held drill.

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