General description This heavy-duty, easy-to-use T-Mech 4-stroke Petrol Post Driver/Jack Hammer features a high impact hammer action of 700~1350 rpm. It is capable of driving posts, stakes, or pegs into the ground within seconds, making it an ideal choice for various applications such as fencing posts and signs. With a powerful 37.7cc engine, this tool alleviates the back-breaking work of manually hammering posts. Its new and improved design enhances comfort and impact power, while its portability is ensured with a carry case equipped with wheels for easy storage. Technical specifications Engine: 37.7cc, single cylinder, air cooled, 4-stroke, XY139-F petrol engine Max power: 900W (1.2HP) Max speed: 6500 r/min Max torque: 1.3 ft/lb at 5500 r/min Impact frequency: 700~1350 rpm Fuel consumption rate: ≤ 0.9L/h Oil tank capacity: 0.08L Fuel tank capacity: 0.65L Impact energy: up to 41 ft lbs Spark plug type: CMR6A Weight: 21.9 kg Dimensions: Width: 0.32m / 32cm / 12.6”, Depth: 0.30m / 30cm