"By the way not letting it get dull helps a lot.
Part of that is keeping it cool, if I have a bunch of holes to make I will keep a cup of water near me to keep dipping the unibit in between holes."
Bob, i have been using cup of water since i started using step bits, with good results, good post, as far as sharpen, not worth the time, we have a built in tooling charge, for all jobs, so cost is never a problem.
