Multi Bit Drill Head

[smythe]

Hello-

I have been thinking about a way to build a multi bit drill head, I thought maybe someone here can comment on the idea and possibly add some suggestions. Basically, my idea was this - ball bearings mounted in a piece of aluminum (centered in relation to the holes that need to be drilled). Then using something like a set-screw "chuck" (think bit extension) for the bit, pulled through the bearing with set-screw collar to allow it to spin freely, then mount some pulleys on top of the shaft using some sort of belts to a drive gear from the motor source.

...any thoughts?