Handle adopt the thickening high carbon steel plate to production, energy saving design of bending helve.Spear parts after high temperature treatments, strong and practical.Handle with ergonomic design, comfortable don't skid.Manual rotation back device, save time and effort, quick and convenient.Specifications:Maximum working strole: 7mmMaximum working effective stroke: 6 mmThe biggest lever ratio: 25 timesThe range of the spear: M-3, M-4, M-5, M-6Colour:Black+redMaterial:MetalPackage Contents:1 * BT-603 Hand Riveter Gun4 * Nuts1 * WrenchOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.