Professional bar and chain combo from Oregon. AdvanceCut chainsaw bars (formerly known as Pro-Lite and Pro-91 bars) are popular with arborists looking for a high quality bar for their tree saw. Made from silicon alloy steel for high strength and light weight. Bars have a sturdy 9 tooth sprocketnose held in place by multiple rivets. Try one on your tree saw and see why professional arborists refuse to run anything else. AdvanceCut chainsaw bars only run 3/8" pitch low profile chainsaw chain and we paired this one up with Oregon's 91PXL chain. A high-performance, low-kickback chain well suited for commercial cutters, arborists and occasional users. Enhanced grind geometry significantly improves out-of-box sharpness with substantial speed improvement in boring and bias (undercut) modes. The chamfer chisel design puts twin cutting corners that offer outstanding performance, durability and easy maintenance. The Vibe-Ban cutter heel reduces vibration at the handlebar by 25% or more. Like most Oregon chainsaw chain this style has LubriLink tie straps help keep oil where it's needed - on the chain. Sharpens with 5/32" file or 1/8" grinding wheel. 91PXL also features a bumper drive link which reduces kickback without sacrificing performance. It meets ANSI B175.1 standards for low-kickback saw chain.