MAINTENANCE CREW WAS USING A HOISTING STRAP AND FORKLIFT TO RAISE THE STEEL TOP OFF OF A JET PULVERIZER MILL WHEN THE STRAP SLIPPED FROM THE FOR5KS. THE STEEL PLATE DROPPED APPROX. 1/2"" ONTO T HE MAINTENANCE EE'S MIDDLE FINGER. THE BONE IN THE TIP OF HIS MIDDLE FINGER WAS FRACTURED. HE WAS RELEASED FROM THE DOCTOR AND CLEARED TO RETURN TO WORK.