The Makita GA7911 Angle Sander is a powerhouse in the realm of sanding and grinding tools, designed to tackle the most challenging applications with ease. Its heart is a formidable 15.0 AMP motor, capable of delivering a no-load speed of 7,000 RPM, ensuring efficient and rapid material removal. This angle sander is exceptionally versatile, accommodating both 7-inch and 9-inch grinding wheels, depending on the task at hand and the guard installed. Durability is a key feature, with labyrinth construction and zig-zag varnish protecting the motor and bearings from dust and debris, coupled with enlarged all ball bearing construction for an increased lifespan. The spiral bevel gears enhance the smoothness of operation and efficiency of energy transfer, making the tool more effective in its performance. For added convenience, it features an AC/DC switch, allowing the use of alternative power sources. The angle sander is also designed with user convenience in mind, featuring externally accessible brushes for easy maintenance, a large tool rest bumper to protect both the tool and work surfaces, and an ergonomically placed, adjustable side handle for operator comfort. With an overall length of 16-1/4 inches and a weight of 12.2 lbs., this tool is a formidable addition to any professional's toolkit, backed by Makita's commitment to quality and a 1-year warranty.