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Posted by anotherid on August 17, 2006, 5:18 am
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Do ER(25) collets provide a good grip for holding drill bits as well as
endmills?
Brendan
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anotherid
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Posted by anotherid on August 21, 2006, 5:37 am
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Since it seems to be agreed that ER collets are a good thing, how do I
choose a
set?
I can see an ER25 set from Warco for £99. The collets have a range of
2mm.
From Chronos I see a set for £190! The collets however look to have a
range of
just 1mm.
From the previous post, I presume that the 1mm collets will be better?
But is it
worth paying all the extra to get that? My mill is a Warco
WM-16 (3/4 HP), so
relatively light cuts are all I can take.
Any other suggestions for where/what to look/for? I did find a place
called (I
think) Axminster and requested a catalogue from them, but
nothing ever turned up
so I gave up on them.
Brendan
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Posted by =?ISO-8859-1?Q?Nick_M=FCller?= on August 21, 2006, 8:05 am
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> From Chronos I see a set for £190! The collets however look to have a
> range of just 1mm.
1mm smaller is the normal capacity. The smaller ones even just 0.5mm.
You should obey that, or you ruin them.
> From the previous post, I presume that the 1mm collets will be better?
> But is it worth paying all the extra to get that? My mill is a Warco
> WM-16 (3/4 HP), so relatively light cuts are all I can take.
For a mill, you only need the following sizes:
6mm, 10mm, 12mm, 16mm and 20mm. (ER25 has 16mm as the biggest one) These
are the diameters of the mill's shafts. Even reamers do have shaft
diameters in 1mm increments if you buy the right ones.
You might want to use the collets on your lathe, so go for quality and
not for bargains.
If you want to do drilling in your mill, you might consider buying a
drill chuck. Or slowly add the collets you need. For my ER32 I am far
away from having a complete set and can well live with what I have.
Nick
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The modular DRO
Available now in USA / Canada
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Posted by Lester Caine on August 21, 2006, 11:51 am
Please log in for more thread options anotherid wrote:
> Since it seems to be agreed that ER collets are a good thing, how do I
> choose a set?
>
> I can see an ER25 set from Warco for £99. The collets have a range of
> 2mm.
>
> From Chronos I see a set for £190! The collets however look to have a
> range of just 1mm.
>
> From the previous post, I presume that the 1mm collets will be better?
> But is it worth paying all the extra to get that? My mill is a Warco
> WM-16 (3/4 HP), so relatively light cuts are all I can take.
>
> Any other suggestions for where/what to look/for? I did find a place
> called (I think) Axminster and requested a catalogue from them, but
> nothing ever turned up so I gave up on them.
Just picked up a couple of sets of ER16 collets from CNC Tooling Systems
http://www.cncts.co.uk/html/view_tools.asp
Price was right ;)
Arc Euro have some nice packages for ER25
http://www.arceurotrade.co.uk/en-gb/dept_79.html
--
Lester Caine - G8HFL
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L.S.Caine Electronic Services - http://home.lsces.co.uk
Model Engineers Digital Workshop -
http://home.lsces.co.uk/ModelEngineersDigitalWorkshop/
Treasurer - Firebird Foundation Inc. - http://www.firebirdsql.org/index.php
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Posted by anotherid on August 21, 2006, 1:56 pm
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Lester Caine Wrote:
> wrote:
>
> Arc Euro have some nice packages for ER25
> http://www.arceurotrade.co.uk/en-gb/dept_79.html
>
> Yup, looks like about £122 for a full set of ER25. Are they are a
> reputable
firm? Do they do a catalogue or are they web-based only?
>
> Brendan
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> range of just 1mm.