miller disc socket or wrench size question

[4240 Turbo]

I was thinking order a socket for my miller disc. Do not know what size, I measured it and I think 2 3/4" looks pretty close. does anyone have one and happen to have the correct size or sizes needed? I think the angle adjustments and the gang bolts might be the same size or might need 2 sizes. I bought used and no manual or wrenches with it.

 

[rrlund]

I don't know, but just measure across the flats on the nut.