In message , Andrew Mawson
writes

"David Littlewood" wrote in message
...
In article , Tom Miller
writes


I tend to use sheet metal drills for hole
starting. They are very short and are double
ended. you can break twice as many for the same
price!


Sheet metal drills?

David
--
David Littlewood

They are ground to a sort of a cusp - centre point and also cutting
edge at the periphery of the flutes

AWEM




Perhaps look at .............

http://www.centerdrills.com/CNCspot.htm



Mike
--
Mike Whittome - Frequently wrong; seldom without opinion!