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2. Bore gauge - Wikipedia

   en.wikipedia.org/wiki/Bore_gauge

   An inside micrometer or vernier bore gauge measures a bore directly. The gauge has three symmetrical anvils that protrude from the gauge body that are connected to the dial or micrometer mechanism. As the knob is rotated it moves the anvils in or out with respect to the measurements.

3. Micrometer (device) - Wikipedia

   en.wikipedia.org/wiki/Micrometer_(device)

   Bore micrometer, typically a three-anvil head on a micrometer base used to accurately measure inside diameters. Tube micrometers have a cylindrical anvil positioned perpendicularly to a spindle and is used to measure the thickness of tubes. Micrometer stops are micrometer heads that are mounted on the table of a manual milling machine, bedways ...

4. Gauge (instrument) - Wikipedia

   en.wikipedia.org/wiki/Gauge_(instrument)

   Bore gauge: a device used for measuring holes. Hole gauge [3] used to gage internal dimensions of bores that are either too small in diameter for an inside micrometer, and have greater economy than a bore gage or other precision internal gage. Caliper: a device used to measure the distance between two opposing sides of an object.

5. List of gear nomenclature - Wikipedia

   en.wikipedia.org/wiki/List_of_gear_nomenclature

   The inside cylinder is the surface that coincides with the tops of the teeth of an internal cylindrical gear. [1] Inside diameter. Internal gear diameters.

6. 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.

7. Honing (metalworking) - Wikipedia

   en.wikipedia.org/wiki/Honing_(metalworking)

   Superabrasives and hone head for cylinders Honing tools. Honing uses a special tool, called a honing stone or a hone, to achieve a precision surface. The hone is composed of abrasive grains that are bound together with an adhesive. Generally, honing grains are irregularly shaped and about 10 to 50 micrometers in diameter (300 to 1500 mesh grit ...

8. Screw thread - Wikipedia

   en.wikipedia.org/wiki/Screw_thread

   A dedicated type of micrometer, called a thread mic or pitch mic, which has a V-anvil and a conical spindle tip, contacts the thread flanks for a direct reading. A general-purpose micrometer (flat anvil and spindle) is used over a set of three wires that rest on the thread flanks, and a known constant is subtracted from the reading.

9. Ring gauge - Wikipedia

   en.wikipedia.org/wiki/Ring_gauge

   A ring gauge, or ring gage, is a cylindrical ring of a thermally stable material, often steel, whose inside diameter is finished to gauge tolerance and is used for checking the external diameter of a cylindrical object. [1] Ring gauges are used for comparative gauging as well as for checking, calibrating, or setting of gauges or other standards ...