Flare Nut Wrench, Alloy Steel, Satin, Head Size 5/8 in, 11/16 in, 6-Point Flare Nut, 8 3/4 in/ OVERALL LENGTH: 8.812 INCHES NOMINAL WRENCHING SURFACE SIZE: 0.625 INCHES NOMINAL FIRST END WRENCHING SURFACE SIZE: 0.688 INCHES NOMINAL SECOND END WRENCHING SURFACE SHAPE: HEXAGON BOTH ENDS INTERNAL MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMIUM OVERALL STYLE DESIGNATOR: 130 FLARE NUT DOUBLE END