Material: Alloy steel body and rubber non-slip handle cover. The nut rivet tool is suitable for use in car, trailer and furniture repair, or even boat building. Also for repairing tools and agricultural equipment. 5 nut rivet mandrels: M3 / M4 / M5 / M6 / M8. Totally 100 pieces nut rivets. Ribbed Rivets, M3 (20pcs), M4 (20pcs), M5 (20pcs), M6 (20pcs), M8 (20pcs) to meet your various needs. Easy to use, just drill a hole in the workpiece, assemble the appropriate rivet nut onto the tool, insert it into the hole, press and then ground. Labor-saving design: Includes a wrench to hold the handles and adjust the mandrels, a sturdy and ergonomic tool cover with a non-slip rubber hand. 86pcs Rivet Nuts Kit Rivets: All tools and accessories are packed in a plastic case for good storage and easy portable use. Note: Apply for alloy nut and iron detacher tool not apply to steel nut, just for alloy nut (m3, M4, M5, M6, M8) and iron nut (m3, M4, M5, M6) Body Material: Steel. Handle Cover Material: