The primary difference between an 8-inch and 10-inch drill press lies in their swing capacity. As mentioned earlier, swing capacity represents the distance between the center of the chuck and the support column. An 8-inch drill press typically offers a swing capacity of around 4 inches, whereas a 10-inch drill press would provide approximately 5 inches of swing capacity. This added inch in swing allows for greater flexibility and maneuverability when working with larger materials or objects.