Features Exquisite workmanship and stable performance, it is a great tool for you. Reinforced alloy cylinder provides large storage capacity and strong strength. Wear-resistant aluminium alloy body ensure long service life. Made of high quality movement, durable to use. Powerful pull spring is elastic which can effectively reduce vibration. Features:1. Made of high quality movement, durable to use.2. Exquisite workmanship and stable performance, it is a great tool for you.3. Wear-resistant aluminium alloy body ensure long service life.4. Reinforced alloy cylinder provides large storage capacity and strong strength.5. Powerful pull spring is elastic which can effectively reduce vibration.6. Suitable for casting sand cleaning and welding front opening groove, welding slag, flat solder scar, correction of stone, concrete and brick wall opening work. Specification:Condition: 100% Brand NewImpact Number: 4500rpmAir Consumption: 114L/minWorking Pressure: 6-8KGCylinder Stroke: 150mmInlet Port: 1/4"Blade Shape: HexWeight: Approx. 1539g / 54.3ozScraper Knife Length: Approx. 12cm / 4.7in Package List:1 * Air Hammer 4 * Scraper Knife1 * Inlet Port1 * Spring Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List