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  1. Nominal Pipe Size - Wikipedia

    Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] "Nominal" refers to pipe in non-specific terms and identifies …

  2. French catheter scale - Wikipedia

    For example, a catheter with a French size of 9 would have an outer diameter of approximately 3 mm. While the French scale aligns closely with the metric system, it introduces redundancy …

  3. Track gauge conversion - Wikipedia

    Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a …

  4. Point (typography) - Wikipedia

    The desktop publishing point (DTP point) or PostScript point is defined as 1⁄72 or 0.013 8 of an inch, making it equivalent to 25.4⁄72 mm = 0.352 7 mm. Twelve points make up a pica, and six …

  5. Help:Convert units - Wikipedia

    Template { {convert}} converts a value from one unit of measurement to another. This page documents some features of units, and lists units that are commonly used in conversions.

  6. Template:Convert/list of units - Wikipedia

    The table below lists units supported by { {convert}}. More complete lists are linked for each dimension. For a complete list of all dimensions, see full list of units. { {Convert}} uses unit …

  7. List of drill and tap sizes - Wikipedia

    Schematic of a machine tap Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured …

  8. Inch - Wikipedia

    A fire hydrant marked as 3-inch The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to ⁠ 1 36 ⁠ yard or ⁠ 1 12 ⁠ …