Just curious what size it is. I know I can use a crescent wrench but I have craftsman points I need to use and room in the toolbox so I will just get the wrench.

 

See if you can borrow a 1 7/16" wrench for fit. My 1 3/8th is too small and the 1 1/2 is too loose. None of my metrics are that large except box ends. With them the sizes are measured across one of the flats. *BW*

 

Thank you, I just used a crescent wrench.