Powerful and Efficient: Delivers 2500-2700 BPM high-frequency impact with a 2.76 in. stroke for strong striking force, efficiently handling metal cutting, concrete breaking, bolt removal and other heavy-duty tasks. (Avg. air consumption: 14.5 CFM, air pressure: 90 PSI, air inlet: 1/4 NPT)Easy to Use: Features a sensitive trigger and one-button start for simple operation without trigger adjustment. Ergonomic pistol grip provides a comfortable, non-slip, stable hold with reduced fatigue. Comprehensive Accessories: Includes 4 replaceable long barrel chisels (6.7 in/170 mm, round shank), oil injector, 3 air connectors, and a retaining spring for firm chisel hold and quick changes. Premium. Material: Constructed with powder-coated aluminum alloy housing and built-in air spring system for improved stability, precision and vibration damping, while being shockproof, wear-resistant and corrosion-resistant.