On 16 Jul 2003 05:14:41 GMT, (MichaelMandavil) wrote:
Could someone please explain to me the relative advantages and disadvantages of
a mill drill, as compared to a drill mill? Or is this one of the questions
which only the great masters of machinery are allowed to contemplate? +:]

A mill drill is a machine, invented in Taiwan, which consists of a heavy drill press
head with a drawbar to retain milling cutter holders in the taper of its spindle (usually
R8 or MT3), mounted on a column over an a XY table used for positioning the work.
It is intended for light milling and moderately heavy drilling applications.

A drill mill is a specialized machine intended to mill drill bits of the kind used for
deep hole drilling (with high pressure oil pumped through them). These machines
are rarely seen today since any ordinary CNC machining center can quickly
produce the bits (now usually using carbide inserts), so a specialized machine
is no longer required to make them.

Gary