This is a useful and practical universal hand riveter. It's widely used for pulling rivet in household and factory projects. Features: Shockproof design eliminates the impact of the riveter on the arm during operation. Widely used to pull rivet for home and factory. Ergonomic and non-slip handle, convenient and comfortable to use. Cast steel riveter head, sturdy and durable. Specifications: Maximum working strole: 9mm Maximum working effective stroke: 7 mm The biggest lever ratio: 25 times Rivet nut range: M-3, M-4, M-5, M-6, M-8 Item size: 290 * 130 * 30mm Package size: 300 * 140 * 35mm Package weight: 775g / 1.5lb Packing list: 1 * Hand Riveter 5 * Nuts or 40 * M-3 Rivet Nut 40 * M-4 Rivet Nut 20 * M-5 Rivet Nut 20 * M-6 Rivet Nut 20 * M-8 Rivet Nut 20 * M-10 Rivet Nut 20 * M-12 Rivet Nut