The RYOBI 4-1/2 in. Angle Grinder features a side handle that can be placed in 3 unique working positions, and a rear handle that will rotate 90° left or right helping you use the grinder in a variety of applications. The ergonomic grinder handle features GRIPZONE™ technology for steadiness and comfort. The grinder runs at 11,000 RPM to deliver powerful grinding performance and has a tool free wheel guard for added convenience.