Pneumatic tools run on compressed air to offer high power in a lightweight package for handling jobs such as chiseling, cutting, drilling, hammering, punching, nailing, riveting, sanding, and sawing. They typically have fewer moving parts than electric tools to minimize maintenance needs. Air caulk guns allow controlled caulk dispensing for consistent application. Air guns deliver a powerful stream of air for cleaning and drying tasks. Air nailers use air power to drive in fasteners for framing, roofing, siding, finishing, and more. Air scarifiers remove finishes, rough up work surfaces, and prepare surfaces for refinishing. Air tapping arms feature an air motor that optimizes spindle speeds and torque for thread tapping. Rivet presenters automatically index and feed rivets to the front of the tool to reduce cycle time on production lines. Needle scalers remove rust, old paint, and excess material from metal surfaces.