BLACK OXIDE FINISH MADE IN U.S.A. SERVICES RECESSED 5 POINT NUTS ON TAMPER RESISTANT BUFFALO COVERS UTILIZED BY ELECTRIC, WATER, AND GAS COMPANIES SEE IMAGES FOR DETAILS ON WHAT SIZE THIS SOCKET WILL FIT SERVICES RECESSED 5 POINT NUTS ON TAMPER RESISTANT BUFFALO COVERS USED BY UTILITY COMPANIES TO PROTECT SHUTOFF VALVES