Review on Superior SolidWork Professional Hand Caulking Gun with Highest 24:1 Thrust Ratio - Perfect for 10oz Sealant and Adhesive Cartridges and Tubes - Drip-free Silicone Gun in Blue by Julius Hunter

I would give this gun five stars because it works so well, but the piercing tool (nail) is only three and a half inches long so I have to use another gun's piercing tool (or a piece of wire) to pierce foil into the seal tube , if needed, just cut off the end of the seal tube nozzle to get the thin bead I want for the inner seal. All of my other caulk guns are made with four inch pierced tooling. This gun doesn't have a tip hole, but that doesn't bother me as I prefer to use my utility knife for this job. The ease of use of this pistol and the accuracy of the pressure make it a pleasure to use. This is definitely the glue gun to use when you need a broad tip and want easy dispensing.