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Centercutting, non-centercutting endmills?

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  • Centercutting, non-centercutting endmills?

    Would any of you learned folks care to explain to me what the difference and uses of a centercutting and non- centercutting endmill would be?
    Thanks,
    Pat
    WANNABE

  • #2
    This was well discussed about a week ago,
    http://bbs.homeshopmachinist.net//Fo...ML/012329.html

    Allan

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    • #3
      A centercutting mill is configured such that it can be plunged straight into the work because it can cut with its center. A non-centercutting mill typically has a little hole in the center which where it was held by a center during the grinding process, and thus can't be plunged into the work.

      Typically two flute endmills are centercutting, endmills with more (3 flute, 4 flute etc) may or may not be centercutting, you have to check the bottom and see.

      I'll see if I can dig up a picture or two that people have posted in the past to show the difference.

      -Justin

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      • #4
        Pat,
        Read these two posts.

        http://bbs.homeshopmachinist.net//Fo...ML/008268.html

        and

        http://bbs.homeshopmachinist.net//Fo...ML/001525.html
        .

        Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.



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        • #5
          Thanks to the folks who replied! I understand the differences and uses now.
          WANNABE

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