An employee used a bridge crane to place a 12-foot long piece of bar stock onto a portable roller stand and a fixed roller table. The employee then disconnected the bar stock from the crane and began moving it along the rollers. The portable roller stand was not perpendicular to the bar stock, causing the bar stock to roll off the side. The employee put their hand out to direct the bar stock away from himself as it fell to the floor. His right middle fingertip was pinched and amputated between the bar stock and the fixed roller table.