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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. Countersink - Wikipedia

   en.wikipedia.org/wiki/Countersink

   In manufacturing, a countersink (symbol: ⌵) is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common use is to allow the head of a countersunk bolt , screw or rivet , when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counterbore makes a flat ...

4. Counterbore - Wikipedia

   en.wikipedia.org/wiki/Counterbore

   The smaller top item is an insert, the middle shows another three-fluted counterbore insert, assembled in the holder. The shank of this holder is a Morse taper, although there are other machine tapers that are used in the industry. The lower counterbore is designed to fit into a drill chuck, and being smaller, is economical to make as one piece.

5. Drilling - Wikipedia

   en.wikipedia.org/wiki/Drilling

   This process is faster, but is only used in moderately long holes, otherwise it will overheat the drill bit. It is also used when drilling stringy material to break the chips. [8] [9] [self-published source?] [10] When it is not possible to bring the material to the СNС machine, a Magnetic Base Drilling Machine may be used.

6. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   While the above is a common use of center drill bits, it is a technically incorrect practice and should not be considered for production use. The correct tool to start a traditionally drilled hole (a hole drilled by a high-speed steel (HSS) twist drill bit) is a spotting drill bit (or a spot drill bit, as they are referenced in the U.S.). The ...

7. Annular cutter - Wikipedia

   en.wikipedia.org/wiki/Annular_cutter

   The tube clamping device is a metallic device that is clamped on the tube with an adjustable chain. After clamping the device the magnetic drilling machine is placed on the device, which gets clamped to the device by switching on its magnet. With the help of magnetic drilling machines' proper RPM, the annular cutter makes a perfect hole in the ...