The TAJIMA Convoy 12 Super Heavy Duty Caulk Gun 310ml is a premium professional sealant applicator engineered for demanding construction, glazing, decorating, and installation applications. Designed to accept standard 310ml cartridges, this heavy-duty caulking gun delivers exceptional thrust and precise control, making it ideal for dispensing high-viscosity sealants, silicones, adhesives, and bonding compounds with minimal effort. Built for rigorous everyday trade use, the Convoy 12 features a robust frame construction and a powerful drive mechanism that provides smooth, consistent material flow for accurate bead application and professional finishing results. The gun incorporates a drip-free auto-flow stop system that automatically releases pressure when the trigger is released, helping to prevent unwanted material run-on, minimise waste, and keep work areas clean. A 360° rotating barrel allows the cartridge to be positioned at the optimum angle for improved access when working in corners, overhead, or in confined spaces. For added convenience, the gun also includes a built-in nozzle cleaning pin, enabling users to quickly clear blocked nozzles without the need for additional tools.