Plunge cutting with a milling cutter *might* work. The best solution is to fit a
boring head to your DP spindle. It isn't as hard as you might think, there exist
a lot of 3MT to whatever arbors, 2MT also. Any el cheapo boring head with a
small boring tool would work OK for this.

But given the low price of 1/2" end mills I'd just chuck one of those up and
have at it. If you can get it to run slow enough (600-ish rpm) it should work.
The biggest problem with using milling cutters on a DP happens if you try to put
any side load on them. This tends to pop the chuck arbor out of the spindle.

GWE

Art wrote:

Hello RCM'rs.

If you have an existing 1/4" dia hole (1/2" deep), and want to drill
a new hole of 1/2" dia and offset it .040" from the center of the 1/4
hole but you only have a drill press how would you do it?

Right now I'm thinking of trying a drill bushing correctly oriented
over the part and just trying a twist drill but was hoping there is a
better way ( I would normally try plunge cut will mill).
TIA for any comments.

AL