Open End Wrench, Alloy Steel, Black Oxide, Head Size 1 1/4 in, 1 5/16 in/ OVERALL LENGTH: 14.625 INCHES NOMINAL LARGE END HEAD THICKNESS: 0.500 INCHES NOMINAL SMALL END HEAD THICKNESS: 0.500 INCHES NOMINAL WRENCHING SURFACE SIZE: 1.250 INCHES NOMINAL FIRST END WRENCHING SURFACE SIZE: 1.313 INCHES NOMINAL SECOND END WRENCHING SURFACE SHAPE: OVAL BOTH ENDS INTERNAL SMALL END HEAD ANGLE: 15.0 DEGREES NOMINAL LARGE END HEAD ANGLE: 15.0 DEGREES NOMINAL MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL STYLE DESIGNATOR: 104 DOUBLE HEAD