STIHL 33RSC3-72 Oilomatic Rapid Super Comfort 20-Inch Saw Chain, 3/8-Inch Pitch, .050-Inch Gauge, 72 Drive Lengths (Discontinued by Manufacturer) 3/8-Inch rapid super chain 0.050-Inch gauge 72 Drive lengths Aggressive full chisel chain, but has a single-humped drive link to reduce kickback tendency Features excellent cutting and plunge cutting efficiency