This kit will install and insert inside another insert for a triple oversized repair for a M10x1.5 x 24.5mm insert P/n 50155 (5) are included . Larger insert p/n 15158 M14x1.5x24.5mm (5) are included . Kit includes (1) special M10x1.5 BIG-SERT with a dowel p/n 50155WD if needed. Your hole depth should be at least 31mm deep. See instructions here: