A method for deburring a ground metal part includes loading a ground metal part into a carrier, contacting a first planar surface of the ground metal part with a first grinding wheel, and contacting a second planar surface of the ground metal part with a second grinding wheel. The first grinding wheel is rotated in a first rotational direction. The second grinding wheel is rotated also in the first rotational direction. After the first grinding wheel is rotated in the first rotational direction, the first grinding wheel is then rotated in a second rotational direction, which is opposite to the first rotational direction. After the second grinding wheel is rotated in the first rotational direction, the second grinding wheel is also rotated in the second rotational direction.