Makita GA5020 5-Inch Angle Grinder with Super Joint System Super Joint System (SJS) technology helps prevent gear damage caused by accidental wheel binding Powerful 10.5 AMP motor delivers more output for increased performance Electric brake for maximum productivity Rotatable gear housing can be positioned every 90 Refined design at only 5.9 lbs. for reduced operator fatigue AC/DC switch for use with alternative power source Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life Externally accessible brushes for greater serviceability Ergonomic soft grip provides increased comfort on the job Ideal for welders, fabricators, masons, maintenance/repair and more 5"" Grinding Wheel (741407-8-1) Side Handle (153504-2) Wheel Guard (135108-2) Inner Flange (224399-1) Lock Nut (193465-4) Lock Nut Wrench (782424-9) GS5000 9557PBX1 9564P GA7031Y GA9031Y GA6020 GA5020Y GA4534 GA4530 GA4030K GD0601 9565PC 9564PC 9566PC GA6010Z GA5010Z GD0600 GA9040S GA9020 GA7040S GA7020 GA7021 GA7011C 9558PB 9557PB 9557NB 9566CV 9015A GD0800C GA7001L 9005B 9565CV 9564CV Refined Design at only 4.8 lbs. AC/DC switch for use with alternative power source Labyrinth construction seals the motor from dust and debris by creating a complex set of channels prohibiting contamination Externally accessible brushes for greater serviceability Soft Grip for more comfort and control