Description Features: 1.Multifunctional: The air hammer kit is best for fixing exhaust systems, front end jobs, general bolt cutting, pin driving, and auto body shearing work. 2.Multi Drill: Equipped with air pump joint elastic spring, pointed, flat, dovetail, concave shape drill, making brake pad rust removal more convenient and efficient. 3.User Friendly Design: The power tool offers shock reduction, an anti slip hand grip, and a swivel air inlet that prevents hose twisting during use. 4.Long Lasting: This long lasting air hammer will withstand tough environments, repeated drops, and exposure to harsh chemicals. 5.Wide Application: The air hammer kit can be used for cutting metal panels, fixing exhaust systems, scraping surfaces, chipping, and making auto body repairs. Specification: Item Type: Air Hammer Kit_x005F_x000D_ Material: Metal alloy_x005F_x000D_ 150mm Short Barrel:_x005F_x000D_ Impact Frequency: 4500 RPM_x005F_x000D_ Average Air Consumption: 15 CFM_x005F_x000D_ Working Pressure: 6.3-8 kg_x005F_x000D_ Piston Diameter: Approx. 19mm/0.75in_x005F_x000D_ Piston Stroke: Approx. 45 mm/1.77in_x005F_x000D_ Recommended Inner Diameter of Trachea: 3/8in_x005F_x000D_ Cylinder Diameter: Approx. 39 mm/1.54in_x005F_x000D_ Shank Hole: Approx. 10 mm/0.39in_x005F_x000D_ Blade Length: Approx. 120 mm/4.72in_x005F_x000D_ Air Inlet Size: 1/4in_x005F_x000D_ _x005F_x000D_ 150mm Short Barrel:_x005F_x000D_ Impact Frequency: 3500 RPM_x005F_x000D_ Average Air Consumption: 15 CFM_x005F_x000D_ Working Pressure: 6.3-8 kg_x005F_x000D_ Piston Diameter: Approx. 19 mm/0.75in_x005F_x000D_ Piston Stroke: Approx. 65 mm/2.56in_x005F_x000D_ Recommended Inner Diameter of Trachea: 3/8in_x005F_x000D_ Cylinder Diameter: Approx. 39 mm/1.54in_x005F_x000D_ Shank Hole: Approx. 10 mm/0.39in_x005F_x000D_ Blade Length: Approx. 70 mm/2.76in_x005F_x000D_ Air Inlet Size: 1/4in_x005F_x000D_ _x005F_x000D_ 250mm Long Barrel:_x005F_x000D_ Shock Frequency: 220 RPM_x005F_x000D_ Average Air Consumption: 15 CFM_x005F_x000D_ Working Pressure: 6.3-8 kg_x005F_x000D_ Piston Diameter: Approx. 19 mm/0.75in_x005F_x000D_ Piston Stroke: Approx. 85 mm/3.35in_x005F_x000D_ Recommended Inner Diameter of Trachea: 3/8in_x005F_x000D_ Cylinder Diameter: Approx. 39 mm/1.54in_x005F_x000D_ Shank Hole: Approx. 10 mm/0.39in_x005F_x000D_ Blade Length: Approx. 175 mm/6.89in_x005F_x000D_ Air Inlet Size: 1/4in_x005F_x000D_ _x005F_x000D_ Suitable For: Car Body Maintenance, Brake Pad Rust Removal_x005F_x000D_ Use for Cutting Metal Panels, Fixing Exhaust Systems, Scraping Surfaces, Chipping, and Making Auto Body Repairs