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Cutting a flute on a tap

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ieezitin:
I have made my own tap now i want to cut flutes in it for chip relief, whats better a ball end mill or regular end mill.

it is .636 dia 26TPI i was thinking three flutes,

All advice is welcome.

Thank you.

Anthony.

jcs0001:
Anthony:

This page might help.  Dean deals with cutting flutes in a counterbore and gives a formula to use as to how deep from the top of the counterbore to lower the end mill (if using a vertical mill on a counterbore held horizontally):

http://www.deansphotographica.com/machining/projects/mill/cbore/cbore.html

I've used a regular end mill to do the same for cutters but can't say that I have a lot of knowledge in this regard.

John.

NeoTech:
Take not that Dean is also a wizard.

DMIOM:

--- Quote from: NeoTech on September 13, 2015, 02:42:33 AM ---Take not that Dean is also a wizard.

--- End quote ---

+1    :bow:  :bow:  :bow:

Will_D:
Thats a great article on making your own cutters.

There really should be a knowledge base for definitives like this ( or is there one already ? )

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