Impact Socket, Socket Size 10 mm, Socket Shape 6-Point, Drive Type Impact, Drive Size 3/8 in/ WRENCHING SURFACE SIZE: 10.0 MILLIMETERS NOMINAL SINGLE END DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END FEATURES PROVIDED: POWER TOOL WRENCHING SURFACE SHAPE: 6 POINT SINGLE END INTERNAL DRIVE END SHAPE: SQUARE SINGLE END INTERNAL SPECIAL FEATURES: STANDARD LENGTH MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL STYLE DESIGNATOR: 168 INTERNAL-INTERNAL SPECIFICATION/STANDARD DATA: 05047-ASME B107.33M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD NONDEFINITIVE SPEC/STD DATA: 1 TYPE