91VXL is a high-performance, low-profile chain. It is ideal for professional arborists and orchardists who use lightweight chainsaws. The cutting teeth are 33% longer than standard 91 cutters. The low-vibration half-chisel teeth provide a clean cut with a low-susceptibility sharpening profile and good cutting durability. Features and benefits Lubritec � keeps the chain and bar oiled, for less friction and longer life The blue cutters provide high-quality corrosion protection.