EE WAS ON OVERTIME ASSITING WITH REBUILDING CYCLONE FEED PUMP AT THE MILL BUILDING. EE WAS USING A PIPE WRENCH TO LOOSEN A SHEAVE WHEEL BY EXERTING HEAVY DOWNWARD PRESSURE ON THE WRENCH HANDLE . WHEN WHEEL NUT LOOSENED, THE MOMENTUM OF THE DOWNWARD PRESSURE RESULTED IN EE PINCHING HIS RIGHT INDEX FINGER BETWEEN THE WRENCH HANDLE AND GUARD BRACKET. TREATMENT INCLUDED 3 SUTURES. EE W