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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 parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.
where is the tap drill size, is the major diameter of the tap (e.g., 3 ⁄ 8 in for a 3 ⁄ 8-16 tap), and / is the thread pitch (1 ⁄ 16 inch in the case of a 3 ⁄ 8-16 tap). For a 3 ⁄ 8 -16 tap, the above formula would produce 5 ⁄ 16 , which is the correct tap drill diameter.
Number drill bit gauge sizes range from size 80 (the smallest) to size 1 (the largest) followed by letter gauge size A (the smallest) to size Z (the largest). Although the ASME B94.11M twist drill standard, for example, lists sizes as small as size 97, sizes smaller than 80 are rarely encountered in practice.
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The chart is mostly good, but it isn't great yet. The 5.2mm row does contain an error, although not quite the one you thought. A 5.2mm drill is indeed an acceptable tap drill for M6-1.0, and so is 5.0mm, *but* each yields a different percentage of thread (5.2→~60%, 5.0→~75%). So in the cell where that 5.2mm row now shows "75", it should say ...
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The USTA Tennis on Campus National Championship is the pinnacle major tournament hosted in April. [ 3 ] [ 14 ] A pool of 64 schools throughout the nation which were the champions or runners-up of their Sectional Championship or the Fall/Spring Invitational earn automatic bids to Nationals. [ 7 ]