I have a bunch of them I bought in small sizes from Drill Bit City, including some smaller than #80. Because they are carbide, they are very brittle and will break with any side pressure. I only use them in a drill press or my Sherline mill with the sensitive?drilling attachment.?
On Sun, Mar 23, 2025 at 1:06?PM Bob Werre via <bob=[email protected]> wrote:
I was changing a few mis. items in a drawer just
a few minutes ago.? I once bought a box of carbide drill bits
from a train-show exhibitor.? I think Micro tool people also
sell the same thing--really just a bunch of bits (of random
sizes!) in a plastic box, but each bit has a fat collar around
it.? I had thought that collar mount would save a lot of time
just in not having to adjust the collet size for each bit
change.?
I once tried to use them but it quickly broke.? I
don't think I've tried any since, so to the back of the drawer
they went!? I'm wondering if you gentlemen have used them
successfully and how you deal with carbide bits??