Spark Plug Thread Chaser Set 10, 12, 14 & 18mm 2pc

A 2-piece spark plug thread chaser set for cleaning and restoring damaged or dirty spark plug threads in cylinder head ports. The double ended tools cover four common sizes, making it a practical option when threads need tidying up before refitting plugs.

Used for vehicle maintenance, engine servicing and repair work where spark plugs have been cross-threaded, fouled or become difficult to remove and refit cleanly. Handy for garage work, workshop use and home mechanics working on petrol engines, especially when you want to clean existing threads and improve plug fit without replacing parts unnecessarily. It is also useful when preparing an engine during routine servicing, helping make plug installation smoother and reducing the chance of further thread damage.

The set includes two double ended thread chasers covering M10 x 1.0, M12 x 1.25, M14 x 1.25 and M18 x 1.5 sizes. That gives you four thread options in a compact 2-piece format, so there is less to store and less to sort through when working at the bench or around the vehicle. For regular maintenance, having the common spark plug thread sizes together helps keep the job straightforward and avoids reaching for separate tools. Built specifically for spark plug port cleaning and re-threading work, these are suited to repeated garage and workshop use where access to the right size matters.

Spark plug thread chaser set specifications

• Contents: 2-piece set with double ended thread chaser tools.
• Covers: Four spark plug thread sizes in one compact set.
• Size range: M10 x 1.0, M12 x 1.25, M14 x 1.25 and M18 x 1.5.
• Function: For cleaning and re-threading damaged or dirty spark plug ports.
• Use: Suitable for servicing, repair work and general engine maintenance.

A practical choice for regular maintenance and repair work.