Features:Light weight and handheld design, easy and convenient to operate.High hardness riveted gun tip, wear-resistant and durable.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-190Weight: Approx.1638g/ 57.8ozImpact frequency: 3000 times/minAir consumption: 5.5cfmInlet: 1/4"Air pipe dia.:>8mmRivet dia.: 2-10mmAir pressure: 6-8mpaPump requirement: 140L/minCylinder stroke: 66mm/ 2.6inPackage List:1 * Riveting Gun1 * Inlet connector1 * Cushion spring1 * Rivet RodNote: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..