Senco Heavy Duty Clinch ToolsSenco Medium Crown Clinch Staplers This is a truly versatile clinch stapler. From automotive interior components, to overhead door manufacturing, this stapler is widely used in fastening sheet metal to rubber, plastics to plastics, and for many other materials.The standard units have a one-inch jaw opening, with a five-inch throat depth. Also available with an eight-inch throat depth. (shown)