LC4 rear sprocket nuts: box wrench won't fit

Just wondering how folks torque (and remove) LC4 rear sprocket nuts, since the hub design doesn't leave room for a socket, or even for a box wrench.

I'm doing a sprocket change on a '96 Duke, and it looks like butane is in order for removal (the one I tried already wants to round off, using an open end 12mm).  As to tightening the new bolts, seems like it will have to be torqued at the bolt head rather than the nut.

It also looks like it might be possible to work a box end around the nut, at least, if the bolts were 5mm shorter.

Your experience and suggestions are appreciated.

Thanks,

David

Edited by dbwindhorst

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