General description Designed for repairing damaged spark plug threads, this Spark Plug Thread Repair Tool Kit includes 16 pieces and is specifically suitable for 14mm x 1.25mm spark plug threads. The kit features M16 x 1.25 x 70mm length taps that allow you to enlarge the spark hole to fit the sleeve, extending the service life of your spark plugs. Technical specifications Number of pieces: 16 Tap size: M16 x 1.25 x 70mm Thread size: 14mm x 1.25mm Material: Hardened steel Other information All tools are organized in a blow-molded case for easy transport and protection of components.