Concrete Chain Saw, Included Chain Force 3 for Cutting Concrete, Bar Length 16 in, Horsepower 6.4, Engine Type Two Stroke, Air Cooled, Fuel Type Gas/Oil (50:1 (2 Percent)), Engine Displacement 94 cc, RPM 9300 +/- 150 RPM, Primary Application - Concrete Chain Saws Cinderblock, Vibration 5.62 m/sec Front Handle, 5.28 m/sec Rear Handle, Fuel Mix Ratio 50 to 1, Fuel Tank Capacity 0.26 gal, Noise Level 104.6 dB, Tool Weight 21 lb, Gas Powered, Water Supply 20 psi min