An orbital knife including a support structure; a yoke rotatably attached to the support structure constituting a yoke hub and a plurality of yoke arms; one or more rotatable knife rolls securely connected to at least one of the plurality of yoke arms; one or more blades attached to each of the one or more knife rolls and including a cutting element; one or more sun gears rotatably attached to the support structure; an anvil roll rotatably attached to the support structure; and one or more planet gears wherein each knife roll has rotatably attached thereto at least one planet gear and each planet gear is mated with a sun gear.