1Made of high quality material, durable to use. 2It can be a air saw, it is convenient to replace saw and file. 3The body is covered by nonslip rubber which can reduce the vibration of grinding. 4Safety trigger design can prevent error operation. 5Applicable to hardware, plastics, electronics, resins, die-casting, home, and other industries of products grinding, polishing and aluminum alloy, zinc alloy and other metal die-casting machine polishing grinding, correction, deburring, rust removal, etc Features: 1.Made of high quality material, durable to use. 2.It can be a air saw, it is convenient to replace saw and file.3.The body is covered by nonslip rubber which can reduce the vibration of grinding. 4.Safety trigger design can prevent error operation. 5.Applicable to hardware, plastics, electronics, resins, die-casting, home, and other industries of products grinding, polishing and aluminum alloy, zinc alloy and other metal die-casting machine polishing grinding, correction, deburring, rust removal, etc. Specification: Condition: Brand New Model: AF-5 Impact Number: 3400rpm Piston Stroke: 5mm Inlet Port: 1/4in Weight: Approx. 777g / 27.4oz Length Size: Approx. 60cm / 23.6in File Length: Approx. 14cm / 5.5in Package List: 1 x Air File 4 x File 1 x Airflow Regulating Valve 1 x Wrench Note: New-style and old-style are ped randomly