Features 1、Compressed air as the power, energy saving and environmental protection, it has strong power 2、The strong spring is made of spring alloy steel material, which is not easy to break. 3、Made of high quality material, durable and long service life 4、Including 5pcs shovel heads, easy and convenient to replace 5、With air inlet, exhaust port and filter air inlet, it can prevent foreign matter from entering the damaged machine Specification Condition: 100% Brand new Item Type: Air Hammer Number of Hits: 2200rpm Air Consumption: 4cfm Working Pressure: 6.2bar Strike Speed Adjustment: Own Speed Control Knob Cylinder Stroke: 90mm Inlet Screw: 1/4in Shovel Handle Shape: Round Handle Hole: 10mm Duct Inner Diameter: 3/8in Blade Length: Approx. 175mm / 6.9in Package List 1 X Air Shovel 1 X Buffer Spring 1 X Inlet Port 5 X Shovel Heads 1 X User Manual