STIHL RAPID(TM) Super 3 is a reduced-vibration and low-kickback version of STIHL RAPID(TM) Super. RS3 is an aggressive, fast-cutting, full-chisel chain but has a single-humped drive link to reduce kickback, and the cutter and tie strap design reduces vibration levels when cutting. The razor-edged, square-cornered cutter shape ensures minimum chain friction for an exceptionally smooth and clean cut in hard or frozen wood. | STIHL Rapid Super 3 Pro 18" Chainsaw Chain