The Makita 9558HNG Angle Grinder has dust proof bearings and motor as well as labyrinth construction protecting all bearings from dust ensuring reliability and long life. It has high performance motor with enough power for masonry cutting and high heat resistance. It has small circumference barrel grip for easy handling. Makita Angle Grinder 9558HNG has shaft lock for easy wheel changes and Labyrinth construction protects all ball bearings from dust and debris.