This is the set I purchased off of Amazon..not heavy duty but worked well.I like his method of "chasing" the threads on the stud with a M12 die. I suspect his method actually reshapes the interference thread pitch to conventional thread dimensions, thus allowing the nut to be removed with less binding. I will purchase a Metric die set before I replace another sway bar link.
On a side note, the Moog sway bar links have grease fittings. I am a fan of that.