<https://gunstuff.tv/product/odin-crowfoot-1-3-8-for-308-ar-style-barrel-nuts/#product>
<http://schema.org/description>
"FEATURES-1/2  drive 1 3/8  jumbo crowfoot wrench for your ODIN Works .308 KeyMod Forend installation-Use to torque the barrel nut to 40-50 ft. lbs.-NOT compatible with the ODIN Works AR15 KeyMod Forend barrel nut"
<https://gunstuff.tv/product/odin-crowfoot-1-3-8-for-308-ar-style-barrel-nuts/>