Thanks... looks like I will be going to gang punching due to production
requirements. One hit equals one gang of 18 holes vs. 18 drilled holes
through a jig....

Wayne

wrote in message
oups.com...
The only time I saw this done was with a type of hole saw in a drill
press. The hole-saw was a hollow tube with a single cutting edge
sharpened on the inside.

Jig was made to hold the tubing under the drill and provide support for
the cut.