Rivet Nut Tool Kit Material: The rivet nuts are made of aluminum alloy which provides strength, corrosion protection and long service life. Heavy-duty steel rivet nut gun with non-slip and ergonomic handles, rivet nut tools and easy change of mandrels. Wide application: The rivet nut tool is perfect for use in car, trailer and furniture repair, boat building and other maintenance projects. Also for repairing tools and agricultural equipment. Easy to use: Simply drill a hole in the workpiece, assemble the appropriate rivet nut onto the tool, attach it Insert into the hole, squeeze then finish. Tool with chuck button to easily separate the rivet nut from the riveter once it has been secured. The tool stop lever limits the opening of the handles after the nut has expanded to prevent the nut threads from deforming. Comes with a wrench for holding the handles and adjusting the chucks. With portable box: The hand rivet nut gun kits come with a portable box which is suitable in size and weight, saves space and is easy to carry. Note: The tool does not apply to steel nut, but only applies to aluminum alloy nut (M3, M4, M5, M6, M8) and iron nut (M3, M4 , M5, M6). Rivet Nut Gun Kit Complete kit for more convenient use: 110 pieces in total. 1 x rivet nut gun, 5 high quality threaded mandrels with bits, totally 105 ribbed rivet nuts (M3 (25 pieces), M4 (25 pieces), M5 (25 pieces), M6 (15 pieces), M8 ( 15 pieces) to meet your various needs.