Made of and sturdy materials, this nut installation tool kit is sturdy, durable and safe. With a pack of useful and strong mandrels with different size, it brings great convenience to your installation work. Reasonably designed installation tools provide you with a comfortable experience. Features -Color: Assorted. -Material: Chromium molybdenum steel, aluminum alloy. -Size: About 32.70X15.50X3.00cm/12.85X6.09X1.18in. - The rivet tool kit has multiple interchangeable mandrel groups and various sizes of rivet nuts, which can ensure that all your needs are met - Excellent when access to the rear of the panel is limited, sheet metal processing. - The rivet nut tool is a combination of multiple design concepts that are simple to use and labor-saving, . - The tool is made of quality material. Excellent design structure and hard material to extend the service life. - Wide range of applications, it can be reinforced such as bicycles accessories, body panels, furniture accessories, etc. Package list: 1 × Toolbox 1 × User Manual 1 × Wrench 1 × Riveting Machine 7 × Mandrels 130 × Rivet Nuts