Dual size heim joint wrench for Heim joint jam nuts.
 
Fits 3/4 or 7/8 jam nuts.  Has a 1/2'' square for using a 1/2'' breaker bar or torque wrench to tighten down jam nuts. 1/4'' wide wrench so it fits in tighter spots a regular wrench can't fit.
 
In stock, same day shipping.