What is a Pin Nailer Used for? | ToolVisit- finish nailer for molding wood ,20/3/2021· A pin nailer is a small, air-driven gun that shoots thin nails. It's often used to install molding and trim. It fires a 23 gauge nail. Therefore, 23-gauge is the most appropriate choice if you want to design with delicate pieces. For example, little furniture trim cannot handle lower gauge nailers. A pin nailer is a high-quality tool that can ...Brad Nailer vs Finish Nailer: Which One Is Best For Use?24/3/2021· A Finish nailer, like a Brad nailer, would not be used for the rest of a job or project. Instead, you only use it under very unique circumstances. A Finish nailer, rather than a standard nail gun, will be used to install trim or molding.