Anyone use steel cutting router bits? - Router Forums
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post #1 of 22 (permalink) Old 10-07-2018, 06:40 PM Thread Starter
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Default Anyone use steel cutting router bits?

Yes I know, no one routers steel.
I would of said the same thing about cutting steel with a circular saw blade years ago, but steel cutting blades have transformed the small metal shop and they actually work good, technology to the rescue.

SO I noticed metal cutting router bits on McMaster, ,just search for Router Bits for Steel and Stainless Steel
I'd post the link, but since I am new can't.


anyone try them? I need to make a 1/32 to 1/16 inch deep grove on a 12" diameter 1018 steel circle (basically a 11.5" diameter groove along the inside) and this might be just want I need.


If that does not work I will probably use a diamond blade on a grinder. it will look ratty, but functional. Need to do 100 circles like this so was going to use a simple circle jig.

I know I should buy a metal lathe, not in the budget, although I might break enough bits to make me regret that decision. lol.
if you are curious this is to attach UHWM trim and make a very low friction circle for a cnc machine.
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post #2 of 22 (permalink) Old 10-07-2018, 07:47 PM
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I have not but bought a ferrous metal circular saw blade and cut steel roofing with my ez tracksaw. Cut clean and straight as could be. I was very impressed. Blade was from harbor freight. No jagged edges at all just like factory edges .
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post #3 of 22 (permalink) Old 10-07-2018, 10:07 PM
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What speed are those McMaster bits meant to turn?

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #4 of 22 (permalink) Old 10-08-2018, 03:11 AM
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Originally Posted by Cherryville Chuck View Post
What speed are those McMaster bits meant to turn?
The cutting diameters range from 1/8 inch to 3/8 inc to 3/8 inch, with shanks of the same diameter, so the rotational speed i probably in the 20,000 rpm range.
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post #5 of 22 (permalink) Old 10-08-2018, 07:13 AM
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There are carbide bits for high speed grinders ( know as burrs in some circles The double cut ones cut faster). These work in routers without issue. Use light passes
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post #6 of 22 (permalink) Old 10-08-2018, 10:03 AM
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No issues with metal fragments being tossed at high speed?

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #7 of 22 (permalink) Old 10-08-2018, 10:56 AM
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No issues with metal fragments being tossed at high speed?
Could wear a jacket, and probably take care of that. What I would like to know, is there any issues with sparks? One of the last things I need to do is burn down my shop.

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post #8 of 22 (permalink) Old 10-08-2018, 12:28 PM
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Here's a guy using a regular carbide router bit on steel. I believe he's running at a much lower speed than on a router though.

Go to 21 minutes in...

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post #9 of 22 (permalink) Old 10-09-2018, 10:27 AM
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Who would have thought it, certainly not me. Thanks for posting it Paul/

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post #10 of 22 (permalink) Old 10-10-2018, 09:15 PM
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Quote:
Originally Posted by TenGees View Post
Here's a guy using a regular carbide router bit on steel. I believe he's running at a much lower speed than on a router though.

Go to 21 minutes in...

https://www.youtube.com/watch?v=NZyyb7aeiY0
definitely a much slower speed, and a lot more torque too, that's a milling machine he's using!. carbide milling bits used on steel have a TiN coating to reduce the wear from the action of the iron on the carbide though..
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