Over the years I've learned to slow-down the speed when drilling metal, and use a good cutting oil, but the bits still break, get dull, lost, etc. So I'm sort of always on the look-out for a new set. Anyone know the difference between Black Oxide, Titanium, Cobalt, etc.?? What do you buy, and why?
I bought a drill Dr. once. I had it out of the box for about 30 minutes before I wanted to throw it out the window. Probably just don't know how to use it, but I could never get small diameter bits sharp(er). Anyone have experience with bit sharpeners and could comment on which ones work, if any??
I'd post a picture of my drill bit drawer, but it probably looks like everyone else's. Lots of sets, mostly incomplete. I know there's probably a few out there that have very complete, and sharp sets.
Just curious, and we're talking "metal". What do you buy? Do you run'm until they're broken, lost, or dull. Or, do you sharpen them, and if so, how?