Box End Wrench, Alloy Steel, Chrome, Head Size 19 mm, 21 mm, Overall Length 8 3/4 in, 25°/ OVERALL LENGTH: 221.0 MILLIMETERS NOMINAL WRENCHING SURFACE SIZE: 19.0 MILLIMETERS NOMINAL FIRST END WRENCHING SURFACE SIZE: 21.0 MILLIMETERS NOMINAL SECOND END WRENCHING SURFACE SHAPE: 12 POINT BOTH ENDS INTERNAL SPECIAL FEATURES: 25 DEG OFFSET MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMIUM OVERALL STYLE DESIGNATOR: 144 STRAIGHT DOUBLE HEAD