Making holes

Yes they do. My catalogs are at my other studio but I looked this up
for a friend a few months back. They go down to at least 1/8", and
smaller as I recall. The life of the smaller core drills is of course
shorter than the larger sizes, but still hundreds if not thousands of
times longer than a solid plated diamond drill. Also, I would disagree
with Bob Stephan on his site when he says you must use the center feed
with a core drill. I used core drills for many years in a bath, and
then with a water jet. I agree though they work vastly better with the
center feed system. The problem was when I went to the center feed I
had to switch over to belgians which cost more than anything else. But
its a testament to plated core drills that I have never thrown one out,
some of those shank style drills that I have are ten years old now and
have drilled thousands of holes. The main trick is learning how to
dress them right which I had to figure out.

Thank you! I have a dremmel and will use the clay idea to keep the hole
area wet.
Kelly