"Ignoramus22134" wrote in message
...
On 2011-12-30, Jim Wilkins wrote:
When I salvage a chipped end mill, rather than wear down the surface
grinder
wheel I grind the end flat on a pedestal grinder and rough out the 30
degree
back relief.
jsw

Jim, I thought to use them for practice, they would stay chipped, but
I can sharpen some edges.
i

End mills are easy, though a good start. The amount of dish toward the
center doesn't appear to be critical. If you want a 'learning experience'
try sharpening taps with a circular relief and then test them on steel by
hand.

jsw