Dust ejection system removes majority of debris from the air which passes over the motor, preventing abrasion and tracking. Anti vibration side handle to improve user comfort. New guard design allows guard fitment, adjustment or removal without the use of tools, for increased flexibility. Pop off brushes protect the armature from damage at the end of brush life resulting in greater motor durability. The low profile gear case allows access in confined areas. Abrasion protected motor for increased durability.