Features and Benefits: * Adjustable safety guard * 3-position side handle * Spindle lock for quick and easy blade changes * Lock button for convenience * Spindle size: 5/8 x 11 The new (MTNAG304) 4-1/2 angle grinder is all the power you need for your grinding jobs. The 3-position ergonomic handle is ideal for those long jobs and reduces fatigue and stress for the user. Features variable speed control (3,000-11,000 rpm) and is both UL and ETL approved. 1 year warranty.