A roll assembly, which may be included in an agricultural baler, includes: a first roll having a first roll surface with a plurality of first extensions extending therefrom, the first extensions defining a first rotation path when rotated; and a second roll having a second roll surface with a plurality of second extensions extending therefrom, the second extensions defining a second rotation path when rotated. The first roll and the second roll are disposed adjacent to one another such that the first rotation path and the second rotation path partially overlap. At least one roll driver is coupled to at least one of the first roll or the second roll and configured to rotate the first roll and the second roll in the rotation direction such that the first extensions and the second extensions do not collide with each other during rotation of the first roll and the second roll.