28pc Stud Removal & Insert Set Metric size: M6 x 1/ M8 x 1.25/ M10 x 1.25/ M10 x 1.5 • Inch sizes: 1/4-20, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/6-14, 7/16-20, 1/2-13, 1/2-20 • Includes two L-Keys • Uniquely designed tool for the removal & installation of studs without damaging the threads • Each threads size uses one tool for removal & one for installation