The Oregon AdvanceCut D81 replacement 24-Inch Chainsaw Chain is designed to fit a range of different chainsaw models, and features a 81 drive link chain with 3/8-inch pitch and .050-inch gauge. These specifications make it perfect for homeowners and landscaping professionals who occasionally cut wood, delivering a high standard of durability and performance and all-around ease of use. The durable chrome outer layer and hardened rivets prevent wear and reduce the need for chain adjustments, while the full chisel cutters enable it to power through timber with an excellent degree of speed. For saw sizes 50-100 cc. This saw chain meets the kickback performance requirement of ANSI B175.1-2012. Features LubriTec - Oregons next-generation oiling system, designed to extend the guide bar and saw chain life. Compatible with a range of chainsaw models, including, but not limited to: Husqvarna H80-81 Stihl 33RS381E Can be used as a replacement for the following chainsaw chains: Husqvarna H80-59 Stihl 33RS359E Saw chain identification: Always refer to the number stamped on the drive link of your old chain to assure correct gauge and pitch, or refer to your owner’s manual, to order the correct part to fit your saw chain. • Chain gauge is the drive links thickness where it fits into the guide bar groove, matching the guide bar gauge • Chain pitch is the size of the chain and is defined as the distance between any three consecutive rivets divided by 2 • Your guide bar length is stated in the manual, and is the length of the long bar from end to tip (not the full length of the chainsaw). See Oregon’s fitting guide.