Box End Wrench, Alloy Steel, Black Oxide, Head Size 9/16 in, 3/4 in, Overall Length 12 in, 0°/ NONDEFINITIVE SPEC/STD DATA: 1 TYPE OVERALL LENGTH: 12.000 INCHES NOMINAL MATERIAL: STEEL OVERALL SPECIAL FEATURES: 4-POINT; TETHER READY; NON-MAGNETIC; CORROSION RESISTANT; RATCHETING, REVERSING; NON-SLIP; BLACK HANDLE WRENCHING END OFFSET ANGLE: 0.0 DEGREES NOMINAL WRENCHING SURFACE SIZE: 0.5625 INCHES NOMINAL FIRST END WRENCHING SURFACE SIZE: 0.750 INCHES NOMINAL SECOND END SPECIFICATION/STANDARD DATA: 05047-ASME B107.100 CAT 66 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD STYLE DESIGNATOR: STRAIGHT DOUBLE HEAD SURFACE TREATMENT: OXIDE OVERALL