86Pcs Aluminum M3/M4/M5/M6/M8 Blind Rivet Nut Thread Insert and Rivet Tool Nut Rivet Gun with Rivnut Nutsert Riveting KitFeatures:Made of high quality alloy aluminum, very durable to use. Ergonomic tool, made of steel with non-slip handle. Durable, easy to use. High quality durable threaded stem, long handle with comfortable handles, labor saving. It is suitable for use in cars, trailers and furniture repairs, and even in boat buildings. Specifications:Rivet Gun Nut Material: IronNut Material: AluminumColor: Blue+BlackRivet Mandrel Size: M3/M4/M5/M6/M8Nut Mandrel Size: M3/M4/M5/M6/M8Hand Tool Overall Length: Approx. cm/inchWeight: Approx. 1137g Packing ListPackage Included:1 x Nut Riveting Tool5 x Nut Rivet Mandrels: M3/M4/M5/M6/M85 x Nut: M3/M4/M5/M6/M820 x M3 Nut Threaded Rivet20 x M4 Nut Threaded Rivet20 x M5 Nut Threaded Rivet10 x M6 Threaded Rivet Nuts10 x M8 Threaded Rivet Nuts1 x Plastic Container for Carrying Case1 x Instruction Manual