The extra cutting chain included with the TB4620H XP chainsaw helps minimize downtime caused by a dull or broken chain. Rugged construction features include a professional-grade, die-cast chassis and a 46cc, full crank, 2-cycle engine with SpringAssist™ technology for easy pull starts. Ideal for cutting trees and limbs up to 18 in. in diameter, the 20 in. low-kickback bar and chain cuts through limbs fast, while the adjustable, automatic bar and chain oiler helps maintain proper lubrication during operation. Protected by a 3-year limited warranty and helps provide comfort and control with a lightweight design, featuring a 5-point, anti-vibration handle.