This product has a manufacturer **against defects in materials and workmanship for a period of ONE (1) YEAR from the date of original retail purchase. See our Seller Return Policy for more details. [Restore Stripped Screws]: Repair stripped threads with the ABN Thread Repair Tool Set; 131pc long rethreading kit is ideal for repairing 1/4, 5/16, 3/8, 7/16, or 1/2-inch internal or external screw holes [Use for Any Job]: Fix up your engine or restore automotive wear and tear with the rethreading tool kit; Complete any drilling, tapping, and tang removal jobs with the thread chaser set [Carry With You Anywhere]: Spark plug thread chaser and bolt hole thread repair kit comes in a steel case to keep all 131 pieces neatly organized and labeled for your convenience; Lightweight 5lb (2.3kg) case is easy to transport between job sites and takes up little room making it easy to store [Rely on Maximum Strength]: Thread fixer tools are constructed of chrome vanadium steel to withstand repeated use and to help prevent corrosion; Inserts are heat-treated for long-lasting strength [Package Details]: Bolt thread cleaner tool standard thread repair kit includes 5 twist drills, 5 screw taps, 5 installation tools, 5 breaking pin tools, 111 thread inserts, and a carrying case WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.