Makita XLS01Z-BL1850B is a cordless grinder designed for cutting and grinding metal. It features a brushless motor for longer runtime, increased power, and durability. The grinder has a variable speed control dial that allows the user to match the speed to the application at a no-load speed of 3,000-8,500 RPM. The grinder also has a spindle lock for easy wheel changes and a rubberized grip for increased comfort. The Makita XLS01Z-BL1850B is an ideal tool for cutting and grinding metal, making it an excellent choice for metalworkers, fabricators, and DIYers alike.