These bottom brackets use the same tool as Campagnolo cassette lockrings.
EDIT: There are some cassette lockring tools that fit the splines but don't have room for the square axle. Pick one that has full size hole at the other end.
These bottom brackets use the same tool as Campagnolo cassette lockrings.
EDIT: There are some cassette lockring tools that fit the splines but don't have room for the square axle. Pick one that has full size hole at the other end.