16" Rivet Nut Tool Kit 165PCS/185PCS Metric & SAE Mandrels Manual Riveter w/Case

(The M8 mandrel is already installed on the rivet nut tool.). Mandrels including M4, M5, M6, M8, M10, M12, 10-24, 1/4-20, 5/16-18, 3/8-16, 1/2-13. No need to worry about bending or breaking off. Build to Last: The mandrels of the nutsert rivet tool set are forged from 45# steel, ensuring they won't bend or break off during use.