Mirka’s orbital electric 3″ x 4″ dustless sander is lightweight and powerful, at 10,000 rpm, for maximum productivity. This ergonomic sander replaces hand sanding with power, and is perfect for touch-ups and long projects alike. This dust free orbital finishing sander is composed of precision molded composites which provides?optimum user comfort and prevents hand fatigue. The Mirka DEOS 3 x 4’s small size allows for easy access in hard-to-reach spaces. This Mirka sander is built with high-quality moisture resistant parts to withstand any wear and tear to become a reliable companion for your future projects.