Quantity: one set (plus the main body, a total of 86 sets) Material: alloy steel body and non-slip rubber handle coating. Nut rivets are suitable for car, trailer and furniture repairs, and even boat building. Also used to repair agricultural tools and equipment. 5 Nut Rivet Mandrels: M3/M4/M5/M6/M8. A total of 80 pieces of ribbed rivet nuts, M3 (20 pieces), M4 (20 pieces), M5 (20 pieces), M6 (10 pieces), M8 (10 pieces) to meet your different needs. < p>Easy to use, simply drill holes on the workpiece, install a suitable rivet nut on the tool, insert it into the hole and press to finish. Effort-saving design: includes a wrench for the handle and adjustment pliers, a sturdy, ergonomic tool cover and a non-slip rubber hand. 86 Piece Rivet Nut Kit: All tools and accessories come in a plastic case for easy storage and portability. Note: Applicable to alloy nuts and iron disassembly tools not suitable for steel nuts, only suitable for alloy nuts (m3, M4, M5, M6, M8) and iron nuts (m3, M4, M5, M6). Good quality product