iso 30, r8, morse

[Vidar Killingmo]

I am contemplating buying a mill-drill I don't need. The new ones I
have found in an acceptable price range have iso 30, r8, or morse in
different sizes. What is the difference in use? Thanks in advance .

--
Vidar Killingmo

[aki...@earthlink.net]

Go with R8, Morse is something that the attachments for mill dirllls is hard
to find. Iso 30 will cost a bunch.

"Vidar Killingmo" <vidk...@hotmail.com> wrote in message
news:235ef5pcfg3svs8br...@4ax.com...

[RoyJ]

Morse tapers are for drilling, don't take side loads (end mills) well.
R8 is the standard for small mills, would be my first choice on a
mill/drill. ISO 30 are much better than R8 but are much more expensive.
A single ISO30 is in the same price range as a full set of low end R8
collets.

[Gunner Asch]

On Mon, 09 Nov 2009 08:04:36 -0600, RoyJ <spam...@microsoft.net> wrote:

>Morse tapers are for drilling, don't take side loads (end mills) well.
>R8 is the standard for small mills, would be my first choice on a
>mill/drill. ISO 30 are much better than R8 but are much more expensive.
>A single ISO30 is in the same price range as a full set of low end R8
>collets.

Well.....only if you buy new...and dont buy on Ebay.

In fact...NMTB 30 taper today, can be cheaper than R8

http://cgi.ebay.com/30-Taper-Tool-Holder-Carboloy-Milling-Machine_W0QQitemZ120488367691QQcmdZViewItemQQptZBI_Tool_Work_Holding?hash=item1c0daa964b

http://cgi.ebay.com/ETC-30-Taper-Tool-Holder-Milling-Machine_W0QQitemZ120488369022QQcmdZViewItemQQptZBI_Tool_Work_Holding?hash=item1c0daa9b7e

http://cgi.ebay.com/15-Pc-ER40-Spring-Collet-Set-Collets-NMTB-30-Chuck_W0QQitemZ360204563640QQcmdZViewItemQQptZBI_Tool_Work_Holding?hash=item53dddd74b8

Frankly..I dont think Ive ever paid more than $10 for individual
holders.

Same with 40 Taper

And its tougher, stronger and holds better than R8...but thats my
opinion...shrug

>
>Vidar Killingmo wrote:
>> I am contemplating buying a mill-drill I don't need. The new ones I
>> have found in an acceptable price range have iso 30, r8, or morse in
>> different sizes. What is the difference in use? Thanks in advance .
>>
>> --
>> Vidar Killingmo

"IMHO, some people here give Jeff far more attention than he deserves,
but obviously craves. The most appropriate response, and perhaps the
cruelest, IMO, is to simply killfile and ignore him. An alternative, if
you must, would be to post the same standard reply to his every post,
listing the manifold reasons why he ought to be ignored. Just my $0.02
worth."

[Steve Lusardi]

ISO is the Euro standard, R8 (Bridgeport) the American standard. Morse is OK for drilling. Morse for end mills take a 3/8-16
drawbar and are more difficult to find. ISO 30 is better, but tooling is a little bit more difficult to locate than R8. Please
note that Drawbar threads can come in both metric and inch standards for both ISO 30 and for R8. The solution to the problem is
two draw bars. Either R8 or a 30 Taper is OK.
Steve

"Vidar Killingmo" <vidk...@hotmail.com> wrote in message news:235ef5pcfg3svs8br...@4ax.com...

[Mark Rand]

On Mon, 09 Nov 2009 11:16:15 -0800, Gunner Asch <gun...@NOSPAMlightspeed.net>
wrote:

>On Mon, 09 Nov 2009 08:04:36 -0600, RoyJ <spam...@microsoft.net> wrote:
>
>>Morse tapers are for drilling, don't take side loads (end mills) well.
>>R8 is the standard for small mills, would be my first choice on a
>>mill/drill. ISO 30 are much better than R8 but are much more expensive.
>>A single ISO30 is in the same price range as a full set of low end R8
>>collets.
>
>Well.....only if you buy new...and dont buy on Ebay.
>
>In fact...NMTB 30 taper today, can be cheaper than R8
>

On the right side of the pond, 40 taper is significantly more available, and
thus cheaper, than 30 taper. Got a decision to make as to whether to re-make
the spindle of a Beaver milling machine (40 taper was an option, but 45 years
too late for this machine).

Mark Rand
RTFM