Art wrote in message
...
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.

Don't even think of trying to do that. A twist drill will bend to some
extent to follow the original hole whether you use a drill bushing or not.
You must mill a new hole with a 2 flute milling cutter until it at least
clears all sides of the original hole and you can then enlarge that if
needed with a drill bit and/or reamer depending on the accuracy you require.
It's not recommended but at a pinch you can use a milling cutter in a drill
press chuck if you go easy.
--
Dave Baker