Open End Wrench, Alloy Steel, Satin, Head Size 3/8 in, Overall Length 3 3/4 in, 15°, 75°/ OVERALL LENGTH: 3.750 INCHES NOMINAL LARGE END HEAD THICKNESS: 0.156 INCHES MAXIMUM SMALL END HEAD THICKNESS: 0.156 INCHES MAXIMUM WRENCHING SURFACE SIZE: 0.375 INCHES NOMINAL BOTH ENDS WRENCHING SURFACE SHAPE: OVAL BOTH ENDS INTERNAL SMALL END HEAD ANGLE: 15.0 DEGREES NOMINAL LARGE END HEAD ANGLE: 75.0 DEGREES NOMINAL SPECIAL FEATURES: SATIN FINISH MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMIUM OVERALL STYLE DESIGNATOR: 104 DOUBLE HEAD SPECIFICATION/STANDARD DATA: 05047*-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 3 CLASS DEPARTURE FROM CITED DESIGNATOR: AS DIFFERENTIATED BY LARGE END HEAD ANGLE