I'm working with a new client through the SBD-ITC who needs to upgrade old
tooling used to punch hoes in surgical (neoprene) tubing... tubing sizes
from .5od to .625 and hole sizes from 1/16th to 1/8th. At present they use a
single punch and stop just a hair into a Plexiglas stop. My idea is a
punch/die set where there will be no need to pluck incomplete cuts as in the
famous chards of Florida voting cards.

Anybody out there with solid experience punching neoprene tubing? My client
will either buy and tool a new shop or will contract the work to a capable
shop looking for business.

Wayne

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.

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.