Neilsen M14 x 1.5 Thread Repair Kit 15pc Helicoil Insert Set Garage Tool CT3511
1 x M14 x 1.5 Tap – Cuts new threads to accept inserts. 10 x M14 x 1.5 x 12.5mm Thread Inserts (Helicoils) – Strong internal threads. Thread Size: M14 x 1.5mm x 12.5mm insert length. Engine thread repair (e.g., spark plug holes).