Metal cutting end mills for routing wood - Page 2 - Router Forums
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post #11 of 14 (permalink) Old 08-28-2020, 11:05 AM Thread Starter
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I checked some more on my end mills. They are HSS and have an rpm rating of 1200 rpm. It would be unsafe to use the in a router. Just a thought. Enjoyed the comments. Thanks Larry
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post #12 of 14 (permalink) Old 08-28-2020, 12:41 PM
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Originally Posted by lalkie View Post
I checked some more on my end mills. They are HSS and have an rpm rating of 1200 rpm. It would be unsafe to use the in a router. Just a thought. Enjoyed the comments. Thanks Larry
As long as you can stay within the limits provided by the manufacturer you should be able to use HSS mills for cutting wood. I have some surplus aircraft HSS 2 flute 3/16" spiral bits I use for roughing on small projects all the time. I bought 25 for 22 dollars and after using them went back to buy some more in different sizes from him but he had sold all of his HSS bits to someone that contacted him and made a reasonable offer for them.

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post #13 of 14 (permalink) Old 08-28-2020, 07:15 PM
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Hey, when I look at websites, how do I know if a bit is made for metal, wood or plastic?
Companies that make wood router bits typically do not make metal cutting end mills, and vice versa.
But both may make bits for plastics. And there are also bits for different kinds of plastics. Softer plastics and harder plastics need different cutter geometry for optimum results.

Generally, if they are being called endmills, then they're most likely metal cutting bits. If they are called router bits, then they are for wood. If they are for plastics, the description should tell you that.
There are also router bits made for non ferrous metals, like aluminum and brass. Non ferrous router bits are similar to plastic cutting router bits.

Generally, you can use router bits to cut wood, plastics, and non ferrous metals. Sharp bits will give good quality cuts in any of these materials.
What you don't want to do, is use a bit that's been cutting wood to cut plastic or aluminum. Keep bits for plastic and aluminum separate, and never cut wood with them. Wood is actually very abrasive, and will dull bits faster than plastic and aluminum.
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post #14 of 14 (permalink) Old 09-27-2020, 10:24 PM
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End mills for metal won't give you the really nice finish, but I am finding a growing number of ways that a vertical metal mill is great for accurate work. Especially tenons. You can use router bits, my experience is that they don't give a better finish, but the advantage is all the shapes available.
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