16", .325 pitch, .050 ga., 50.1 cc heated handle chainsaw .  The second generation of Husqvarna’s 550 XP® chainsaw is ready for demanding use in your felling, limbing and bucking operations. The saw delivers maximum power in the 50cc class. Designed for professional forestry and tree care crews, this durable saw has improved power and a slimmed-down design. Plus, heated handles increase comfort in cold and damp conditions.