High power 8,500 rpm motor with overload protection provides higher operating speeds under load. Epoxy coated field armature provides long service life against abrasion from airborne debris. Low profile gear case allows for work in tight areas. Automatic turn-off brushes shut down the tool when brushes need to be changed to avoid tool damage. 2 position side handle provides improved ergonomics for specific applications. 7" grinding wheel. Brush window allows for quick brush replacement.