EMPLOYEE INSERTED FINGER UNDER A 12"" X 12"" STONE IN ORDER TO MOVE THE STONE INTO POSITION ALONG THE ROLLERS OF A STONE CUTTER. WHEN HE MOVED THE CONTROL STICK TO LOWER THE HYDRAULIC CUTTER ONT O THE STONE TO SHEAR IT, THE ROLLERS LIFTED CAUSING HIS RIGHT MIDDLE FINGER TO BE SMASHED BETWEEN THE ROLLERS AND STONE.