●Thread repair die set used to clean or repair spindle threads, axle studs and wheel stud threads. ●Contents: 8pcs Die - M20 x 1.25, M20 x 1.50, M22 x 1.00, M22 x 1.50, M24 x 1.50, M24 x 2.00, 13/16" x 20 UNEF, 3/4" x 20 UNEF. 1pc 27mm extension bar with 1/2" Drive.