I have another 4 way Park spoke wrench and another brand of 4 way also. This wrench fits the tightest of them all. Spoke nipples will never get rounded with a bit of light oil on the threads along with this wrench.
This wrench might cost a couple bucks more than other brand, but you can't go wrong with a classic. This is a must buy, real cyclists true their own wheels!!! OK...I am exaggerating..sorry...but if you think about truing your own wheels, buy this one.