Features High hardness riveted gun tip, wear-resistant and durable. Light weight and handheld design, easy and convenient to operate. Powered by compressing air, energy saving and environmental protection. Applicable rivet: solid rivet, aluminum nail, iron nail, stainless steel nail, flat head nail or spherical nail. Suitable for billboard, nameplate joint, aluminum doors and windows industry and other metal workpiece riveting. Specification: Model: OW-190 Weight: Approx.1638g/ 57.8oz Impact frequency: 3000 times/min Air consumption: 5.5cfm Inlet: 1/4" Air pipe dia.:>8mm Rivet dia.: 2-10mm Air pressure: 6-8mpa Pump requirement: 140L/min Cylinder stroke: 66mm/ 2.6in Package List: 1 * Riveting Gun 1 * Inlet connector 1 * Cushion spring 1 * Rivet Rod Note: Please allow slight error due to manual measurement. Thanks for your understanding. 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