Yes,but, ... 5/8?
Could also be Ratchet,Fixed.; Ratchet,Ford......Really Funky....
The fact it is stamped 5/8 is a kinda strong hint that there must be other sizes ....tho I can't imaging why size 1 would be in the middle ...(why not 1/2?)
Someone needs to find one in a different size, or something that fits in it that reduces to 1/4 square drive for a refer valve stem......