This pneumatic grinder features light weight, high safety, fast speed, high efficiency and convenient application.Equipped with a 360 degree adjustable grinding head, this pneumatic grinder is perfect for fast and thorough grinding in hard-to-reach areas as well as knocking welding slag, welding joints and rough edges of workpieces. The pneumatic grinder comes with 3 belts (60, 80, 120 grits) which can be quickly exchanged without tools and are automatically tensioned by a spring force which ensures a secure tape guide.