INJURED EE WAS USING A SLEDGE HAMMER TO DRIVE A PIECE OF REBAR INTO THE GROUND FOR A CONCRETE FORMS SUPPORT. HE WAS HOLDING THE HANDLE DIRECTLY NEXT TO THE HEAD OF THE HAMMER. WHEN HE SWUNG TH E HAMMER TO STRIKE THE REBAR. THE HAMMER HEAD MISSED THE END OF THE REBAR. HIS RIGHT INDEX FINGER STRUCK REBAR CAUSING A LACERATION TO THE FINGER.