Features:_x000D_ _x000D_ Light weight and handheld design, easy and convenient to operate. _x000D_ High hardness riveted gun tip, wear-resistant and durable. _x000D_ Powered by compressing air, energy saving and environmental protection. _x000D_ Applicable rivet: solid rivet, aluminum nail, iron nail, stainless steel nail, flat head nail or spherical nail. _x000D_ Suitable for billboard, nameplate joint, aluminum doors and windows industry and other metal workpiece riveting. _x000D_ _x000D_ Specification:_x000D_ Model: OW-190_x000D_ Weight: Approx.1638g/ 57.8oz_x000D_ Impact frequency: 3000 times/min_x000D_ Air consumption: 5.5cfm_x000D_ Inlet: 1/4"_x000D_ Air pipe dia.:>8mm_x000D_ Rivet dia.: 2-10mm_x000D_ Air pressure: 6-8mpa_x000D_ Pump requirement: 140L/min_x000D_ Cylinder stroke: 66mm/ 2.6in_x000D_ _x000D_ Package List:_x000D_ 1 * Riveting Gun_x000D_ 1 * Inlet connector_x000D_ 1 * Cushion spring_x000D_ 1 * Rivet Rod_x000D_ _x000D_ _x000D_ Note:_x000D_ Please allow slight error due to manual measurement. Thanks for your understanding._x000D_ 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.