[TR] drill bits

[Randall]

Nolan wrote :
>  run them dry, 

That was going to be my point, but I see Nolan has beat me to it.  Too much
heat will quickly destroy the cutting edge; it only takes a few drops of
good cutting oil to keep it cool.

IMO securing the work makes a difference as well.  I keep an XY vice pretty
much permanently installed in my drill press, so it's easier to use it than
to remove it.  I don't keep track of how many uses I get from a bit before
resharpening (Drill Doctor); but it seems like a lot more than 4-5.  The
cheap HSS set I bought with the drill press over 15 years ago is still
mostly original except for the smaller sizes that get broken or lost.

Randall