I usually somehow manage to remove a broken bolt but in this instance
that is not an option so I need to drill it out. The bolt is probably
hardened steel and I am using a drill press at 300 RPM, a cobalt bit,
and metal cutting oil. I have had the drill press arm bungee tied for
the past few hours and all I got was about a millimeter. Is this
normal or am I doing something wrong?

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