EE WAS HELPING TO MAKE A BELT SPLICE. 1 PERSON WAS USING HAMMER TO DRIVE MULTIRIVET DRIVER & THEOTHER PERSON WAS MOVING RIVET DRIVER. INJ PERSONREACHED IN TO MOVE RIVET DRIVER & OTHER PERSON SWUNG HAMMER & STRUCK HIM ON THE RIGHT INDEX FINGER BEFORE HE COULD GET HAND OUT OF THEY WAY CAUSING INJURY