Amtech 4 Piece spark plug thread repair kit - I3666

DURABLE: This 4 piece spark plug thread repair kit is made from hardened carbon steel. RESTORES SPARK PLUG THREADS: It restores spark plug threads by re-tapping them and removing any carbon deposits. OVERHAUL CYLINDER HEADS: The set is also ideal for overhauling cylinder heads, especially those made from aluminium. SPARK PLUG THREAD SIZES: M10, M12, M14 and M1. APPLICATIONS: Applications include garden machinery, mopeds, scooters, motorcycles, cars, vans and LGVs.