Re: [CAD_CAM_EDM_DRO] Carbide bits

On 01/11/2012 04:35 AM, Roland Jollivet wrote:

> Has anyone tried/successfully, to precision grind the tip of a masonry bit
> to the standard format for drilling steel?

Yup, Pat Delany (Rigmatch) in Multimachine
(multimachine@yahoogroups.com) did so and drilled a hole through a good
file by hand using a Cole drill! It looks like the trick is slow speed,
and high pressure, which is not magic.

Dave 8{)

<crossposted to Multimachine>
--
/"Political Correctness is a doctrine, fostered by a delusional,
illogical minority and rabidly promoted by an unscrupulous mainstream
media, which holds forth the proposition that it is entirely possible to
pick up a turd by the clean end."/
(quoted from http://www.wattflyer.com/forums/showthread.php?t=30060)

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