Socket is made from billet heat treated steel and has been black oxide coated for a stunning finish. Socket can be used with 1/2" drive ratchets and torque wrenches.
Socket has reliefs machined in the corners so the socket does not round off the corners of the nut and grabs a hold of the flat of the nut when taking off or installing.
Wrench has a short extension built into it to work with center flange and offset top blower pulleys.