5 inch Bench Grinder 1/3 HP, Wheel Dia 5 inch, Arbor Dia 1/2 inch; Includes 36 grit and 60 grit aluminum oxide wheels Powerful 1/3 HP rated motor won't bog down Steel sealed ball bearings support the motor shaft for long life Balanced design for reduced vibration Adjustable tool rest and eye shields Includes 36 grit and 60 grit aluminum oxide wheels