Hex Key, Tip Size 6 mm, Long Arm Length 3 15/32 in, Short Arm Length 31 mm, Black Oxide/ OVERALL LENGTH: 88.0 MILLIMETERS NOMINAL LONG ARM LENGTH: 3.468 INCHES NOMINAL SHORT ARM LENGTH: 1.218 INCHES NOMINAL WRENCHING SURFACE SIZE: 6.0 MILLIMETERS NOMINAL BOTH ENDS FEATURES PROVIDED: SHORT SERIES WRENCHING SURFACE SHAPE: HEXAGON BOTH ENDS EXTERNAL SPECIAL FEATURES: 25 PER PKG MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL STYLE DESIGNATOR: 120 L-HANDLE SPECIFICATION/STANDARD DATA: 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD