1Spindle Threading Set: The axle spindle thread repair kits could clean or repair axle threads, ideal for a damaged or rusted axle nut, and includes the most common die sizes. 2Sizes Included: The tool set sizes are 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 Inches x 20 Unef, 3/4 Inches x 20 Unef, and extension bar. 3Material: Made of alloy steel amterial, wear resistance and durable, rustproof. Special twist design makes the job of cleaning or repairing axle threads faster and easier. 4Multiple Usages: This rethreading tool kit is mainly used to effectively remove rust and dirt on threads, repair worn threads, restore clear thread lines, etc. 5Storage Box: Equipped with a plastic storage box, the groove design prevents the hub from being abraded, effectively protecting these tools, easy for transport and organizing.