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Thread: Cutting a ball end mill shank

  1. #1
    Join Date
    Sep 2007

    Cutting a ball end mill shank

    I just acquired a couple of Ball end mills, one is 1-1/4", the other is 1". I need the shanks reduced to 3/4". I use DCMT 32.52 inserts and want to know what carbide hardness to look for. The mills are tool steel and can be scored with a file

  2. #2
    Join Date
    Aug 2007
    I do this a lot and turn them to " to less then " just use best USA grade carbide. I do most of mine using Newcomer TPG 222 n60. Picture is showing 1" and 1" then the small one is for my small Albrecht chuck.

    Click image for larger version. 

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