Is my router bit made of metal, or carbide?


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Thread: Is my router bit made of metal, or carbide?

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    Default Is my router bit made of metal, or carbide?

    I recently purchased 4 large bull nose router bits for woodworking.
    I ordered a kind that has a carbide coating. Now I have received these router bits, but upon inspection they look to have normal metal cutting edges. How can I tell if they actually have a carbide coating?
    See attached pictures:




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    Community Moderator Jim Dawson's Avatar
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    Default Re: Is my router bit made of metal, or carbide?

    Kinda looks like carbide, pretty hard to tell from here. Look for brazing securing the tip to the base metal.

    Jim Dawson
    Sandy, Oregon, USA


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    Default Re: Is my router bit made of metal, or carbide?

    Quote Originally Posted by Jim Dawson View Post
    Kinda looks like carbide, pretty hard to tell from here. Look for brazing securing the tip to the base metal.
    I can't see any bracing, because there's paint at the line where the two materials might be connected.
    But knowing that we currently can't rule out that this is carbide, is good enough for me. That means that I really have no reason to suspect that it isn't carbide.
    Thanks!



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    Community Moderator Jim Dawson's Avatar
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    Default Re: Is my router bit made of metal, or carbide?

    I expect that it is carbide given that the price was $28? each. Less than the USA made bits, but in the right range. I normally buy Freud or CMT, or Diablo from Home Depot

    Jim Dawson
    Sandy, Oregon, USA


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    Member mactec54's Avatar
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    Default Re: Is my router bit made of metal, or carbide?

    Quote Originally Posted by loldrup View Post
    I recently purchased 4 large bull nose router bits for woodworking.
    I ordered a kind that has a carbide coating. Now I have received these router bits, but upon inspection they look to have normal metal cutting edges. How can I tell if they actually have a carbide coating?
    A end and side photo would of been better, but what you have is a steel body, the color tells you this, with a brazed carbide insert, most are made like this because of cost

    Mactec54


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    Member ger21's Avatar
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    Default Re: Is my router bit made of metal, or carbide?

    Carbide is not a coating. Bits are either solid carbide, or carbide tips on steel bodies. The only solid carbide bits tend to be spiral bits, and smaller bits. Anything larger than 1/2" with a 1/2" shank will usually be carbide tipped.

    Your's are carbide tipped.

    Gerry

    UCCNC 2017 Screenset
    [URL]http://www.thecncwoodworker.com/2017.html[/URL]

    Mach3 2010 Screenset
    [URL]http://www.thecncwoodworker.com/2010.html[/URL]

    JointCAM - CNC Dovetails & Box Joints
    [URL]http://www.g-forcecnc.com/jointcam.html[/URL]

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Default Re: Is my router bit made of metal, or carbide?

    You see the metal used for the cutting edges are darker than the shank? The shank likely HSS, and tips carbide. They happen to make solid carbide bits in most every shape, though as others point out for something like this it is more cost effective to use HSS body and braze the tips on. Also, the HSS body is more durable and shock-resistant. A carbide tool would be a lot heavier, and stiffer, but more brittle. I've snapped 1/2" solid carbide endmills.



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Is my router bit made of metal, or carbide?

Is my router bit made of metal, or carbide?