"Ignoramus17579" wrote in message
...
On 2009-08-11, Calif Bill wrote:

And hey, wait a minute! the Drill Doctor is an example of a machine
DESIGNED to grind HSS with a diamond wheel. I've done hundreds of bits
on mine, including a couple of broken ones that needed a lot of
grinding, and the wheel still cuts fine.

The wheel in Drill Doctor is not diamond, it is CBN.

i

I seem to remember mine said diamond. Unfortunately I loaned to someone.
Can not remember who I loaned it to. So may buy the one that does split
points.
http://www.drilldoctorstore.us/drilldoctor.html Describes it as a diamond
wheel