LIFTING 2"" X 20""BOLT OUT OF DRAG BEARING CAP, USING HOUSE CRANE & SLING. BOLT BECAME JAMMED, EMPLOYEE GRABBED BOLT & THE SLING BROKE CAUSING THE BOLT TO FALL STRIKING RT. MIDDLE FINGER TIP. CAUSED CRUSHING INJURY TO FINGERTIP, LEADING TO PARTIAL LOSS OF DISTAL PORTION OF FINGERTIP.