Makita 3″ x 21″ Belt Sander (Model 9903)

Experience fast, precise stock removal with the Makita 3″ x 21″ Belt Sander, engineered for professional woodworkers, carpenters, furniture makers and contractors. Powered by a robust 8.8 AMP motor with electronic speed control, this corded electric sander maintains consistent performance under load while running quietly at around 85 dB. Its low‐profile body and extended base let you sand flush to walls and into tight corners, and the ergonomic front grip ensures comfort and control during extended use.

Built for efficiency on wood, metal or painted surfaces, the 9903 features an auto‐tracking belt system that keeps the abrasive belt aligned without manual adjustment. A highly efficient dust‐collection bag keeps your workspace cleaner, and the long power cord gives you room to move without changing outlets. Every sander ships ready to work, complete with an 80-grit belt and dust bag.

Key Features

• Powerful 8.8 AMP motor with electronic speed control
• Variable speed dial: 690–1,440 ft/min to match any application
• Quiet operation (approx. 85 dB) reduces fatigue
• Auto-tracking belt system for uninterrupted sanding
• Low-profile design and front grip for flush-to-wall work
• Efficient dust-collection bag keeps area clean
• Includes one 80-grit abrasive belt, dust bag, and long power cord

⚠️ WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically-treated lumber. Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. For more information, visit www.P65Warnings.ca.gov.