Rugged All Metal Housing for Longer Tool Life Powerful 15.0 AMP Motor Delivers 6,000 RPM to Complete the Most Challenging Applications Enlarged all ball bearing construction for longer tool life Spiral bevel gears for smoother rotations and a more efficient transfer of energy Zig-zag varnish protects the armature coil from dust and debris for longer motor life AC/DC switch for use with alternative power source Includes: (1) 7" x 7/8" x 1/4" Grinding Wheel, 24 Grit, General Purpose Metal (741413-3) (1) 7" Wheel Guard (164477-4) (1) Inner Flange (224111-9) (1) Lock Nut (224512-1) (1) Lock Nut Wrench (782412-6) (1) Side Handle (152492-0) (1) Spindle Washer (261039-0)