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Recent content by Ash30

  1. Ash30

    Pre-pierced hole diameter before countersinking(Sheet Metal)

    Many thanks Notnats & Toolmantwo! :-D I get it now. Really appreciate your advice. B-) Toolmantwo, it would be great if you could provide us with an example, please. Thanks! :->
  2. Ash30

    Pre-pierced hole diameter before countersinking(Sheet Metal)

    Good day people! I would like some guidance in determining the diameter of a hole which is pre-pierced before countersinking by a coining process. I deal with sheet metal materials like cold-rolled steel, EG steel, stainless steel, etc. Is there a formula or standardized reference tables I...

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