The 6089-30 7"/9" 15.0 Amp Roto -Large Angle Grinder w/Lock-on delivers performance and durability for the most difficult grinding jobs. The 15 Amp, 4.2 HP motor provides high overload protection and power for the toughest jobs. 9-Position rotating main handle makes it easier to control the grinder in all orientations. The tool-free burst resistant guard allows the user to quickly adjust the guard without the use of a tool. Both a 7" and 9' Type 27 grinding guard are included for greater productivity.