What is the difference between a drill and an end mill?

Posts on milling engraving advice on milling cutting, drilling mould making
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30Minutes
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What is the difference between a drill and an end mill?

Postby 30Minutes » Sun May 24, 2015 3:49 pm

It seems the only difference between 2 toothed end mills and drills is the price. I am trying to find some other differences. I do not understand it when people say something like a "drill mill" and the "end mill." please help

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Hither
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Re: What is the difference between a drill mill and an end mill?

Postby Hither » Sun May 24, 2015 4:22 pm

A drill mill and an end mill have a world of difference between them. The manufactures, the geometry, name it. A drill bit is the end part of the drilling arm that comes in contact with the surface of the material to be cut. When it rotates, it cuts in only one direction – in the axis – hence the drill bit effectively “makes a hole in the wood, metal, etc.”

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ICarveBoobs
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Re: What is the difference between a drill mill and an end mill?

Postby ICarveBoobs » Sun May 24, 2015 4:36 pm

The drill mill is the mechanism driving the drill bit into the wood (or whatever material you may have) and enables it to make a hole – usually by rotation with a very high rpm.
On the other hand, an end mill has an end bit that enables it to cut in all directions, unlike the drill mill. You noticed I said “all directions?” You did! Good for you! Except that in some cases, the end mill does not cut axially. Answering the reason for that will make me ramble off topic.

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Popov
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Re: What is the difference between a drill mill and an end mill?

Postby Popov » Sun May 24, 2015 6:25 pm

You have said that drill mills are used for making holes. What about the end mills; what are they used for?

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Amaz1nggRace
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Re: What is the difference between a drill mill and an end mill?

Postby Amaz1nggRace » Sun May 24, 2015 6:27 pm

of course drills are always used for making holes, silly///

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OneThirtyThursday
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Re: What is the difference between a drill mill and an end mill?

Postby OneThirtyThursday » Mon May 25, 2015 7:41 am

:lol: ^this reply. *We use an end mill to do some quick profiling (tracing work) in our workplace.

BlueMist
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Re: What is the difference between a drill mill and an end mill?

Postby BlueMist » Mon May 25, 2015 8:19 am

There are varied uses and depending on the geometry of the actual end mill they can be used for plunging, face milling, milling :), pocketing finishing and if there is a center cut it can also be used as a drill for holes. A drill bit is less rigid usually and is used to attack the center to make a hole whereas the mill usually needs a more rigid fixation in the machine to do the same job because the drill angle of the tip is usually greater and tends to move axially when "drilling"

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cocodancer
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Re: What is the difference between a drill mill and an end mill?

Postby cocodancer » Mon May 25, 2015 10:45 am

Cool. I have heard a lot about plunging but I have not entirely been sure about what it means. When can you be said to be plunging something?

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AlmightyJackal9735
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Re: What is the difference between a drill mill and an end mill?

Postby AlmightyJackal9735 » Mon May 25, 2015 6:10 pm

I would like to assume that you mean from a milling background. Plunging cut is obtained when the milling is center-cutting, as opposed to the non-center cutting. in short: plunging = drilling

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Jeezman
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Re: What is the difference between a drill mill and an end mill?

Postby Jeezman » Mon May 25, 2015 6:23 pm

I seem to get the general idea, but I am yet to come up to speed with the terms you have used.


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