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    BSW (British Standard Whitworth) Thread Gauges

    Go & No-Go Plug & Ring gauges from premium German supplier JBO in British Standard Whitworth (BSW) thread form.

      Shop Now BSW British Standard Whitworth Plug Gauges
      Shop Now BSW British Standard Whitworth Ring Gauges
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    1. 1 1/2“
    2. 1 1/4“
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    5. 1 3/4“
    6. 1 3/8"
    7. 1 3/8“
    8. 1/2“
    9. 1/4“
    10. 1/8“
    11. 11/16“
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    14. 2“
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    18. 5/16“
    19. 5/8“
    20. 7/16“
    21. 7/32“
    22. 7/8“
    23. 9/16“
    24. 9/32“
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