I have a old sugino crankset and i need a 15mm socket to reach in and snug the crank bolt down. I went to the bike shop and bought the park tools crank wrench thinking it would fit went home and tried to use it and looked at the tool and its 14mm. So I went and looked for a 5/8 and 15mm socket and those would not fit either.

so my question is can i replace those bolts so that I can use the 14mm tool.