Open End Wrench, Alloy Steel, Black Oxide, Head Size 7 mm, Overall Length 3 in, 30°/ OVERALL LENGTH: 3.000 INCHES NOMINAL WRENCHING SURFACE SIZE: 7.0 MILLIMETERS NOMINAL SINGLE END HEAD ANGLE: 30.0 DEGREES NOMINAL WRENCHING SURFACE SHAPE: OVAL SINGLE END INTERNAL SPECIAL FEATURES: INTERCHANGEABLE HEAD MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL