5 Best Angle Grinders - Nov. 2021 - BestReviews
A 9" angle grinder packs a tremendous amount of power, but it's also heavy: 12 to 16 pounds is common. This is another reason they're really only a tool for pros. The 4 ½" models are much more manageable, usually between four and five pounds. Any lighter than this, and there's a danger that fragile components have been used.