The Onfloor OF20S-L is a multi-surface planetary concrete floor grinder, exterior wood deck sander, interior wood floor sander that is equipped with Onfloor’s patented triple-belt technology. The OF20S-L operates on 110-120V and is powerful enough for professional users yet simple enough for almost anyone to operate and maintain. The low tool speed (500 rpm) of the OF20S-L makes it an ideal multi-surface machine for low-speed applications such as wood floors and decks. The OF20S-L also incorporates Onfloor’s patented tool attachment system that is known for being the fastest tool change in the industry. Tooling packages are available for a multitude of applications including: Concrete Surface Preparation | Epoxy Removal | Mastic/Glue Removal / Wood Floor Sanding/Refinishing | Stone Polishing | Wood Deck Restoration Features 20” Cutting Path: More production in less time. Multi-Surface Capability: Grind Concrete, Stone, Terrazzo, Wood Floors, Wood Decks, and more. Lightweight High Speed: Faster operation and easy mobilization. Up To 198 lbs. Grinding Pressure: Increases productivity with more grinding pressure. Patented Triple Belt Planetary: Creates more torque with less power. Patented Flexible Tool Plates: Follow the contour of the floor for faster production. Removable Handle: Reduces overall height for mobilization. Self-Maintenance Platform: Replace belts and bearings in minutes not hours. Wet/Dry Operation: The machine operates dry with a dust collector or wets with water.