Easy riveting, simple operation, quick riveting speed, convenient and lightweight. Features: Handle adopt the thickening high carbon steel plate to production, energy saving design. Spear parts after high temperature treatment, strong and practical. Handle with ergonomic design, comfortable don’t skid. Manual rotation back device, save time and effort, quick and convenient. Easy riveting and simple operation, an useful tool. Specifications: Capacity: M3, M4, M5, M6, M8 Material: metal Max working stroke: 9mm Max effective working stroke: 7mm Largest multiple of arm of force: 25 Item length: approx. 300mm / 11.8in Item weight: 650g / 1.4lb Package size: 310 * 125 * 35mm / 12.2 * 4.9 * 1.4in Package weight: 962g / 2.1lb Packing List: 1 * Hand Riveter 5 * Heads of Parts (one of them is aready set in the machine) 50 * Nuts 1 * Wrench