Need help Identifying End Mill

Neptil · Jun 18, 2020

Hi there!

I'm new on the forum and I hope I am posting this in the right place. If not if you could please direct me.

I need help identifying the End Mill I recently acquired.

If I am not mistaking, the dimensions are: 2 x 2 x 4.5 x 7.75 and 6 flutes

Would anyone know the brand? There are no other markings on it besides the one you can see in the picture.

Thanks,

Neptil

ChipSplitter · Jun 18, 2020

Yes, it is a massive HSS endmill.

It would make a fantastic paperweight.

Mtndew · Jun 18, 2020

It belongs on the trash to be honest.
But I'm guessing you want to sell it on Ebay.
It's worth about $10 to someone who has the machine to use it on and it can be any of a hundred different brands.

Neptil · Jun 18, 2020

I was thinking about using it.

I was just wondering what the logo was next to the number 2. I've never seen it before.

Any guesses?

Milland · Jun 18, 2020

It's almost certainly a junky China-made tool, but if you want to find a good one like it I'd contact Niagara. I'd probably go with a cobalt base over HSS for longevity, but it does spike the cost.

If you just want to sell it, it won't go for much. Probably best to list it as a novelty item or home defense weapon, almost anyone with a machine that will take it would spend the money on reputable brands.

DDoug · Jun 18, 2020

Neptil said:
I was thinking about using it.

I was just wondering what the logo was next to the number 2. I've never seen it before.

Any guesses?

Do you have a machine capable of using it ?

Milland · Jun 18, 2020

digger doug said:
Do you have a machine capable of using it ?

I have a Dremel adapter that goes that big. Note, do not run at maximum speed!

Neptil · Jun 18, 2020

Haha!

Notes taken.

But to answer the question, yes I do have a machine capable of using it.

Neptil · Jun 18, 2020

digger doug said:
Do you have a machine capable of using it ?

Yes I do have a machine capable of using it.

ChipSplitter · Jun 18, 2020

Neptil said:
Yes I do have a machine capable of using it.

Thinking aloud: 100 SFM = 190 RPM @ .005 ipt = 5 IPM

I wanna see that in a Bridgeport! :popcorn:

I still think it would make a good paperweight......

DDoug · Jun 18, 2020

Neptil said:
Yes I do have a machine capable of using it.

We doo like pix around here....so post away.

CAMasochism · Jun 18, 2020

digger doug said:
We doo like pix around here....so post away.

Oh come now doug, just use your imagination. All you gotta do is chuck on it in your combo mill/lathe and you can face off the whole part in one go!

DDoug · Jun 18, 2020

CAMasochism said:
Oh come now doug, just use your imagination. All you gotta do is chuck on it in your combo mill/lathe and you can face off the whole part in one go!

I have operated a vertical mill with a #50 taper, that would use that.
The machine weighed 13,600 lbs.

ChipSplitter · Jun 18, 2020

CAMasochism said:
Oh come now doug, just use your imagination. All you gotta do is chuck on it in your combo mill/lathe and you can face off the whole part in one go!

Yup, and full slot at 2xD....... :rolleyes5:

jim rozen · Jun 18, 2020

They make end mills that small? Cool.

projectnut · Jun 18, 2020

The logo looks like it's from Colt Industries. It was copyrighted in 1977

(NO WORD) Trademark of COLT INDUSTRIES INC. Serial Number: 73131994 :: Trademarkia Trademarks

At one time Fairbanks Morse was owned by Colt Industries. Colt Industries made different alloys, and Fairbanks made "industrial supplies" including machine tools and tooling. There are a few catalogs available for viewing at the Smithsonian National Museum of American History

Milland · Jun 18, 2020

projectnut said:
The logo looks like it's from Colt Industries. It was copyrighted in 1977

(NO WORD) Trademark of COLT INDUSTRIES INC. Serial Number: 73131994 :: Trademarkia Trademarks

That looks like a solid ID, although for me the bottommost line in the picture isn't distinct enough for confirmation. Perhaps the OP can confirm.

If so, I've got to take back my "junky" epithet. Unless F-M was making Saturday Night Special - grade cutting tools...

eKretz · Jun 18, 2020

These are commonly used on big HBMs. I've seen and used endmills up to 3" diameter and over a foot long. No, you don't bury them... They're mainly only for finishing. Although the big roughing (corncob style) endmills can be buried the feed has to be dropped awfully low. And I would imagine the smallest machines I've run that could use these would have weighed more in the neighborhood of 20 tons. A 50 taper vertical could probably use the 2" endmills for finishing fairly well.

Milland · Jun 18, 2020

eKretz said:
These are commonly used on big HBMs. I've seen and used endmills up to 3" diameter and over a foot long. No, you don't bury them... They're mainly only for finishing. Although the big roughing (corncob style) endmills can be buried the feed has to be dropped awfully low. And I would imagine the smallest machines I've run that could use these would have weighed more in the neighborhood of 20 tons. A 50 taper vertical could probably use the 2" endmills for finishing fairly well.

Whaa?? No, you can use these on smaller machines. I use this one on my Roku-Roku for delicate details.

eKretz · Jun 18, 2020

Sure, to hold your blueprint down...

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