Makita 9557PBX1 4-1/2-Inch Angle Grinder with Aluminum Case Powerful 7.5 AMP motor for high output power in a more compact tool (only 4.5 lbs.) Small diameter barrel grip (only 2-1/2"") for added comfort Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life Lock-on/off feature for continuous operation AC/DC switch for use with alternative power source Protective zig-zig varnish seals the armature from dust and debris for longer tool life Extra large paddle switch for comfortable operation Thicker coil wires are wound more closely to reduce heat and energy loss All-ball bearing design and metal gear housing for durability (1) 4-1/2"" General Purpose Turbo Rim Diamond Blade A-94552 (5) 4-1/2"" 24 Grit Grinding Wheels 741423-0-1 Aluminum case 4 - 4 1/2 grinding wheels Diamond wheel metal gear housing paddle switch