Size: 6 inch Powerful and Efficient, The Professional Choice Features a precision eccentric shaft with a no-load speed of up to 12,000 RPM and 90 PSI working pressure. Pneumatic power delivers sustained torque and power surpassing electric tools, with no risk of overheating. It excels at long-term, high-intensity tasks, making it ideal for auto repair shops, woodworking studios, and metal fabrication workshops. Ergonomic Comfort, Crafted Design Features a lightweight, low-center-of-gravity construction that significantly reduces hand fatigue. Optimized low-vibration technology ensures smooth operation, delivering enhanced control precision and comfort during use so you can focus on every detail. Intelligent Adjustment, User-Friendly Includes a built-in airflow control switch for effortless, stepless adjustment of pad speed, precisely matching demands from coarse grinding to fine polishing. The rear exhaust port design not only extends tool life but also effectively reduces operational noise. Universal Compatibility, Multi-Functional Equipped with a Klett quick-change interface, it allows tool-free rapid replacement of sandpaper, polishing pads, or waxing pads of the same size, greatly boosting work efficiency and effortlessly handling surface treatment on various materials. Ready to Use, Built to Last The kit includes everything you need to get started: 1x 6-inch pneumatic sander, 1x dedicated wrench, 1x 1/4-inch NPT quick-connect fitting. Following the recommended oil maintenance schedule significantly extends the tool's lifespan.