EMPLOYEE WAS LOADING A STEEL BOX THAT MEASURED APPROX 1.5' WIDE X 2.5' LONG X 1.5' TALL IN THE BUCKET OF A SKID LOADER ""BOB CAT"". WHEN HE SLID THE BOX INTO THE BUCKET, HIS LEFT HAND INDEX FINGER WAS PINCHED BETWEEN THE BUCKET OF THE LOADER AND STEEL BOX CAUSING A LACERATION TO INDEX FINGER OF LEFT HAND. THE WOUND REQUIRED 10 STITCHES TO CLOSE.