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2. Boring bar - Wikipedia

   en.wikipedia.org/wiki/Boring_bar

   The parts include the body, bar holder and dial screw (graduated micro screw). The body, made of solid stock, has two basic parts. The top part threads or presses into the supporting shank. The lower part (bar holder) is connected via dovetail, T-slots or a smooth notch with an adjustment for bore diameter via the dial screw. As the dial screw ...

3. Hole punch - Wikipedia

   en.wikipedia.org/wiki/Hole_punch

   The essential parts of a hole punch are the handle, the punch head, and the die. The punch head is typically a cylinder, with a flat end called the face. The die is a flat plate, with a hole matching the head. The head can move, while the die is fixed in place. Both head and die are usually made of a hard metal, with precise tolerances. One or ...

4. Boring (manufacturing) - Wikipedia

   en.wikipedia.org/wiki/Boring_(manufacturing)

   A part's-eye view of a boring bar. Hole types: Blind hole (left), through hole (middle), interrupted hole (right). In machining, boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder.

5. Horizontal boring machine - Wikipedia

   en.wikipedia.org/wiki/Horizontal_boring_machine

   A horizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types — table, planer and floor. [ 1 ] The table type is the most common and, as it is the most versatile, it is also known as the universal type.

6. Bridgeport (machine tool brand) - Wikipedia

   en.wikipedia.org/wiki/Bridgeport_(machine_tool...

   Bridgeport manual milling machines came in many types and sizes over the years, including (but not limited to) the C head (original), R head (heavy duty C head), M head, J head (and high speed, 5440 RPM version), 2J1 1/2 head (1.5 HP Vari-Speed), 2J2 (2HP Vari-speed), and Series II head (4HP Vari-speed).

7. Heavy equipment - Wikipedia

   en.wikipedia.org/wiki/Heavy_equipment

   A heavy equipment operator drives and operates heavy equipment used in engineering and construction projects. [7] [8] Typically only skilled workers may operate heavy equipment, and there is specialized training for learning to use heavy equipment. Much publication about heavy equipment operators focuses on improving safety for such workers.