Hex Key, Tip Size 8 mm, Long Arm Length 3 55/64 in, Short Arm Length 35 mm, Black Oxide/ OVERALL LENGTH: 98.0 MILLIMETERS NOMINAL WRENCHING SURFACE SIZE: 8.0 MILLIMETERS NOMINAL BOTH ENDS WRENCHING SURFACE SHAPE: HEXAGON BOTH ENDS EXTERNAL SPECIAL FEATURES: 5 PER PKG MATERIAL: STEEL OVERALL STYLE DESIGNATOR: 120 L-HANDLE