The ECHO CS-621SX is a professional-grade petrol chainsaw designed for heavy-duty forestry and felling applications. Featuring a robust 59.8 cm³ engine delivering 3.2 kW (4.4 PS) of power, it is equipped with a 500 mm (20-inch) guide bar for efficient cutting. This durable chainsaw boasts a dry weight of 6.2 kg (without bar and chain), a 0.64 L fuel tank, and a 0.30 L chain oil tank, ensuring extended operation. With a chain pitch of 3/8 inch and a gauge of 1.47 mm, it provides reliable performance. Its sound power level is 115.0 dB(A), and vibration levels are controlled at 3.0 m/s² on both front and rear handles, enhancing user comfort during demanding tasks.