Specification Material: 45 # Steel and 40CR Process: Forging Color: Silver, Black Assembly Required: Yes Operation Type: Manual Stroke: 10cm/3.94in Blowing Rate: 2100BPM Working Pressure: 90psi Air Inlet: 1/4" Air Hose Size: 3/8" Tool Case Size: 45.5*31.5*11.2cm/17.91*12.4*4.41in Package Size: 46*30*10cm/18.11*11.81*3.94in Gross Weight: 8.55kg/18.85lbs Package Included 1 Set * Powerful Pneumatic Hammer Set 1* Tool Case.