"Joe AutoDrill" wrote in message
...
One of our customers with a special three spindle drilling head is having
some problems. They went out and bought a drill press that can not get
the
RPM / thrust settings right for a particular drilling process they need to
run.

Rather than buy a new drill press, they bought some tooling that can
handle
the higher feed rate per revolution.
snip

On one of our multi-drill set-ups, rather than use the built in feed on the
Clausing drill press, we have an air cylinder pushing the spindle from the
top using a live center. We vary the feed pressure with a regulator.
Simple and haven't had any issues. We are blessed with a couple of used
machinery dealers around here. This Clausing was a couple hundred bucks.