The compact gear case allows access in confined areas. Anti vibration side handle to improve user comfort, anti lock flange prevents flanges from permanently locking up and locking the disc on. New guard design allows guard fitment, adjustment or removal without the use of tools, for increased flexibility and fully leaded stator windings for increased motor durability. Pop off brushes protect the armature from damage at the end of brush life resulting in greater motor durability. Abrasion protected motor for increased durability. Side positioned spindle lock gives greater protection to button when using in confined spaces.