An employee was asked by a table saw's control panel operator to push back stacked material to be cut through the hold-down bar area. The injured employee hit the E-stop button to push back the material as requested. While his hand was still on the material, the control panel operator hit the cut buttons, causing the hold-down bar to come down on the injured employee's right hand. The employee pulled his right hand out from under the hold-down bar, resulting in an amputation of the right index finger up to the knuckle with bone loss.