Ratcheting Wrench, Alloy Steel, Black Chrome, 1 1/2 in Head Size, 19 1/4 in Overall Length/ OVERALL LENGTH: 19.313 INCHES NOMINAL WRENCHING SURFACE SIZE: 1.500 INCHES NOMINAL BOTH ENDS WRENCHING SURFACE FLUTE QUANTITY: 12 HEAD ANGLE: 15.0 DEGREES NOMINAL WRENCHING SURFACE SHAPE: OVAL FIRST END INTERNAL WRENCHING SURFACE SHAPE: SPLINE SECOND END INTERNAL WRENCHING END OFFSET ANGLE: 15.0 DEGREES NOMINAL SPECIAL FEATURES: RATCHETING BOX END (REVERSIBLE); ANTI-SLIP DESIGN OPEN END; BLACK CHROME FINISH; NO. 48 SPLINE SIZE MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMATE OVERALL STYLE DESIGNATOR: 63 OFFSET SPECIFICATION/STANDARD DATA: 05047-ASME B107.100 CAT 66 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD NONDEFINITIVE SPEC/STD DATA: 1 TYPE