Hex Key, Tip Size 10 mm, Long Arm Length 4 19/64 in, Short Arm Length 39 mm, Black Oxide/ OVERALL LENGTH: 117.0 MILLIMETERS MAXIMUM LONG ARM LENGTH: 106.0 MILLIMETERS MINIMUM AND 112.0 MILLIMETERS MAXIMUM SHORT ARM LENGTH: 38.0 MILLIMETERS MINIMUM AND 40.0 MILLIMETERS MAXIMUM WRENCHING SURFACE SIZE: 10.0 MILLIMETERS NOMINAL BOTH ENDS FEATURES PROVIDED: SHORT SERIES WRENCHING SURFACE SHAPE: HEXAGON BOTH ENDS EXTERNAL MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL STYLE DESIGNATOR: 120 L-HANDLE SPECIFICATION/STANDARD DATA: 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD