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  2. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    The drill sizes that are near this are 9.3 mm (0.366 in) and letter U (0.368 in). In addition, 9.5 mm (0.374 in), and 38 in (0.375 in) will work well, although major minus pitch by itself does not tell you this; but the 85% ± 2 pp guideline supports it.

  3. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    3.503 mm: Model railways (HO/h0) Civilian and military vehicles. Often used to describe HO scale. Original nominal 25 mm figure scale; though a 6-foot human in 1:87 is closer to 21 mm. 1:82: 3.717 mm An intermediate scale (HO/OO) intended to apply to both HO and OO scale train sets. Also used for some military models 1:80: 3.810 mm HOj scale.

  4. British Standard Cycle - Wikipedia

    en.wikipedia.org/wiki/British_Standard_Cycle

    Rear axle 38 inch (9.53 mm) diameter, 26 tpi GB Stems using 5 ⁄ 16 inch (7.94 mm) diameter, 26 tpi for the handlebar clamp Note that M8 × 1.00 metric threaded parts can interchange with 5 ⁄ 16 inch (7.94 mm) diameter × 26 tpi parts with a " Class B fit ", meaning you should not go back and forth between threadings.

  5. Drill bit sizes - Wikipedia

    en.wikipedia.org/wiki/Drill_bit_sizes

    For bits thicker than a minimum size such as 1 ⁄ 8-inch (3.175 mm), they are available in fixed lengths such as 6, 8, 12 or 18 inches (152, 203, 305 or 457 mm) rather than the progressive lengths of jobber drills. 11/32 inch drills: long-series Morse, plain Morse, jobber

  6. 1:32 scale - Wikipedia

    en.wikipedia.org/wiki/1:32_scale

    1:32 scale is a traditional scale for models and miniatures, in which one unit (such as an inch or a centimeter) on the model represents 32 units on the actual object. It is also known as "three-eighths scale", since 38 inch represents a foot. A 6 ft (183 cm) tall person is modeled as 2 + 1 ⁄ 4 in (57 mm) tall in 1:32 scale.

  7. Rail transport modelling scales - Wikipedia

    en.wikipedia.org/wiki/Rail_transport_modelling...

    Alternatively 1.1/8 inch per foot is adopted, only Australia for ease of conversion. allowing a scale of 3/32 inch per full size inch. This results in an oversize locomotive and often negates building inside valve gear locomotives (such as the GWR King Class 4-6-0) due to frame width restrictions caused by 5 in ( 127 mm ) gauge track.

  8. 3 ft gauge railroads in the United States - Wikipedia

    en.wikipedia.org/wiki/3_ft_gauge_railroads_in...

    600 mm (1 ft 11 + 5 ⁄ 8 in) Two foot: 610 mm (2 ft) Two foot three inch: 686 mm (2 ft 3 in) 750 mm: 750 mm (2 ft 5 + 1 ⁄ 2 in) Bosnian gauge: 760 mm (2 ft 5 + 15 ⁄ 16 in) Two foot six inch: 762 mm (2 ft 6 in) Swedish three foot: 891 mm (2 ft 11 + 3 ⁄ 32 in) 900 mm: 900 mm (2 ft 11 + 7 ⁄ 16 in) Three foot: 914 mm (3 ft) Italian metre ...

  9. 16-inch/50-caliber Mark 7 gun - Wikipedia

    en.wikipedia.org/wiki/16-inch/50-caliber_Mark_7_gun

    Each D839 propellant (smokeless powder) grain used for full charges for this gun was 2 in (51 mm) long, 1 in (25 mm) in diameter and had seven perforations, each 0.060 in (1.5 mm) in diameter with a web thickness range of 0.193 to 0.197 in (4.9 to 5.0 mm) between the perforations and the grain diameter. A maximum charge consisted of six silk ...