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Posted by Boo on March 31, 2008, 7:58 am
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Hi,
I want to make some parts with slots that have a filleted bottom rather than a
90 degree join (IYSWIM) so I wondered if there is such a thing as a slot drill
or end mill with the very tips of the edges chamfered or radiused to a couple of
millimeters. Kind of like a flat bottomed ball end end mill. Can anyone tell
me if these exist and if so what are they called and who sells them ?
Mnay thanks,
Boo
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Posted by Trevor Jones on March 31, 2008, 8:05 am
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Boo wrote:
> Hi,
>
> I want to make some parts with slots that have a filleted bottom rather
> than a 90 degree join (IYSWIM) so I wondered if there is such a thing as
> a slot drill or end mill with the very tips of the edges chamfered or
> radiused to a couple of millimeters. Kind of like a flat bottomed ball
> end end mill. Can anyone tell me if these exist and if so what are they
> called and who sells them ?
>
> Mnay thanks,
>
> Boo
Are you looking for a bullnose endmill, then? That is the name I order
them under, on this side if the water (Canada)
They are available in stock diameters and corner radii, or they can be
custom ground.
Everything can be got, once you know what to ask for!
Cheers
Trev
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Posted by John Stevenson on March 31, 2008, 8:12 am
Please log in for more thread options On Mon, 31 Mar 2008 12:58:28 +0100, Boo
>Hi,
>
>I want to make some parts with slots that have a filleted bottom rather than a
>90 degree join (IYSWIM) so I wondered if there is such a thing as a slot drill
>or end mill with the very tips of the edges chamfered or radiused to a couple
of
>millimeters. Kind of like a flat bottomed ball end end mill. Can anyone tell
>me if these exist and if so what are they called and who sells them ?
>
>Mnay thanks,
>
>Boo
Yes they are available and I know them as corner radiusing slot drills
or end mills.
The problem is since the advent of CNC grinding there is no defined
terminology for end mills / slot drills etc.
Even different manufacturers call the same item by different names.
--
Regards,
John Stevenson
Nottingham, England.
Visit the new Model Engineering adverts page at:-
http://www.homeworkshop.org.uk/
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Posted by Paul M on March 31, 2008, 8:27 am
Please log in for more thread options Hi Boo
You could try PJ Tooling as I know they regring all kinds of stuff and
he`s quite cheap at around £1.50 per end mill.
He may be able to grind a standard end mill to suit.
I have no connection other than he has sharpened some mills for me and
also made me some odd size counterbores. Good prices and fast
service.
The guys name is Paul .
pjtool@blueyonder.co.uk
Cheers
Paul (Not the above paul!)
>Hi,
>
>I want to make some parts with slots that have a filleted bottom rather than a
>90 degree join (IYSWIM) so I wondered if there is such a thing as a slot drill
>or end mill with the very tips of the edges chamfered or radiused to a couple
of
>millimeters. Kind of like a flat bottomed ball end end mill. Can anyone tell
>me if these exist and if so what are they called and who sells them ?
>
>Mnay thanks,
>
>Boo
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Posted by on March 31, 2008, 1:41 pm
Please log in for more thread options J&L do them, search for corner radius milling cutters
Jason
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>
> I want to make some parts with slots that have a filleted bottom rather
> than a 90 degree join (IYSWIM) so I wondered if there is such a thing as
> a slot drill or end mill with the very tips of the edges chamfered or
> radiused to a couple of millimeters. Kind of like a flat bottomed ball
> end end mill. Can anyone tell me if these exist and if so what are they
> called and who sells them ?
>
> Mnay thanks,
>
> Boo