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Re: [mill_drill] what kind of end mill for hardened steel

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  • Bill
    Carbide will work fine. The blade in the pic is 550 Brinell, or about 55 Rockwell C. I ve used carbide end mills, but a face mill seems to work quite well too.
    Message 1 of 4 , Aug 20 7:45 AM
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    Carbide will work fine. The blade in the pic is 550 Brinell, or about 55 Rockwell C.

     

    I’ve used carbide end mills, but a face mill seems to work quite well too. That’s a 3” diameter, going at about 150 RPM.

     

    Bill

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