The GearWrench XL gear box double box end Metric Ratcheting Wrenches need as little as 5° to move the fastener as opposed to 30° for standard box end Wrenches. The standard box end combined with the Long Pattern Length gives this Wrench excellent torque capabilities to break a stubborn, rusted fastener. The Ratcheting box end then makes the loosening or tightening of the fastener fast and safe. The box end Features improved box end strength from GearWrench's Off- corner loading and at the same time, reduces fastener rounding. The double box end Ratcheting Wrenches are Made from the finest Chrome vanadium Steel for precision long lasting tool life. Comes with a blow molded carrying case that can be hung on a wall or keep your Wrenches organized in your tool box or rollaway. Off-corner loading design on box end provides better grip and reduces fastener rounding pass-through technology and thin head fit down any Length of threaded rod for unparalleled access Size conveniently stamped on both ends of the beam for quick identification 0° Offset on Non-Ratcheting end for breaking loose stubborn fasteners Overall Length 9.5 in SAE/Metric/TORX Metric ASME specification Meets or Exceeds Fastener size 10 mm Drive type 12 Point Length format Extra long Tooth Count 72 Finish Full Polish chrome End B Offset degrees 0 ° End A Drive type 12 Point End A Ratcheting type standard End B Width 0.57 in End B thickness 0.27 in End A Offset degrees 0 ° End B joint type none End A Width 0.78 in End A thickness 0.3 in End A joint type none End A SAE/met Metric End B Ratcheting type none End B SAE/met Metric End A Fastener size 10mm End B Fastener size 10mm End B Drive type 12 Point Material Alloy Steel Set no size 10mm