This STIHL RAPID Super Full Skip chainsaw chain has an extra drive link and tie straps between each cutter, allowing better chip discharge and higher chain speed. It's an extremely fast-cutting chain, and the razor-edged, square-cornered cutter shape ensures minimum chain friction for an exceptionally smooth and clean cut in hard or frozen wood. It offers excellent cutting and plunge-cutting efficiency, and it's especially suited for long bars on large diameter logs, although can be used on short bars as well. | STIHL 20" Saw Chain 3/8" 33 RSF 72