Complete Thread Repair Kit - Includes 8 thread chasers (M20x1.25, M20x1.5, M22x1.0, M22x1.5, M24x1.5, M24x2.0, 13/16"-20 UNF, 3/4"-20 UNF) plus 27mm extension bar for comprehensive thread restoration Precision Thread Restoration - Expertly repairs damaged, rusted or crossed threads on wheel studs, axle shafts and suspension components to original specifications Dual Standard Compatibility - Works with both metric (M20-M24) and standard (13/16", 3/4") thread sizes to handle most automotive and machinery applications Heavy-Duty Construction - Made from hardened alloy steel (HRC 58-62) for maximum durability and long-lasting performance under heavy use User-Friendly Design - Features non-slip grip handles and extension bar for better leverage; comes in compact storage case for organization and portability