Large Size Stamp on Open End. 15° Offset Box End for Better Access. Bright, Full Polish Chrome Finish. Made of Premium Alloy Steel. Off-Corner Loading Design on Open End: Stronger Grip, Reduces Fastener Rounding, Up to 25% More Torque. Off-Corner Loading Design on Box End for Better Grip and Reduced Fastener Rounding. Meets or Exceeds ASME Standards.