The Mighty Seven 4-1/2” 100 Degree Air Angle Grinder is designed for industrial professionals for heavy duty grinding applications. The grinder features air-cooled spiral gears and double bearings for durability as well as a 1.30 hp motor to ensure stalling does not occur during use. A spindle lock provides the user with a quick and easy method to change grinding wheels. The tool also features a 360-degree rotating wheel guard and is backed by a three-year warranty.