Piercing the Caulk Tube Seal
One of the most convenient features of these caulk guns is the built in rod for breaking the foil seal at the bottom of the caulk tube spout.
In days of "yore" you'd have to scrounge up a coat hanger or something similar to stick into the caulk tube spout and break the tube seal. Now you will always have this at the tip of your fingers and stowed neatly out of the way when not in use. Just remember to wipe clean!
