A: Pull handle back.Insert tube.Gently squeeze the handle to set the plunger inside the tube; just enough to hold the tube in place. Clip the tip with scissors (a little at a time to keep the hole small enough to work with). Plug with a nail when finished.
A: No, you need to purchase the larger caulk gun that holds the 29 oz tubes. The 28 oz tube would work with the 29 oz caulk gun size.
A: The back of the plunger rod is bent so it can be used as a ladder hook.
A: Low cost basic no frills caulk gun. Bending a piece of wire and making a hook helps. Anvil 10 oz. Smooth Hex Rod Caulk Gun Model# 08175 comes with a hook.