I suggest that both 65 and 30 mm sockets be fabricated with very little chamfer so that there is maximum contact between socket and nut.
Since the rear axle nut on my V85TT was grossly over tightened at the factory, my 12-point socket slipped and rounded the corners of the nut. I was able to finally get it loose by letting my heavy-duty impact wrench hammer for a long time—glad I was at home instead of beside the road. The socket had so much chamfer that it only made contact with about 1/2 the thickness of the nut. I had to grind down a 6-point impact socket to eliminate chamfer and then grind the outside enough to fit the recess in the swing arm in order to properly torque the nut after replacing the tire.
Since the rear axle nut on my V85TT was grossly over tightened at the factory, my 12-point socket slipped and rounded the corners of the nut. I was able to finally get it loose by letting my heavy-duty impact wrench hammer for a long time—glad I was at home instead of beside the road. The socket had so much chamfer that it only made contact with about 1/2 the thickness of the nut. I had to grind down a 6-point impact socket to eliminate chamfer and then grind the outside enough to fit the recess in the swing arm in order to properly torque the nut after replacing the tire.