General description Designed for repairing damaged spark plug threads, this Spark Plug Thread Repair Tool Kit includes 16 pieces and features M16 x 1.25 x 70mm taps to enlarge the spark hole for a perfect fit. It is suitable for 14mm spark plug threads, ensuring a reliable solution for extending the service life of your spark plugs. Technical specifications Number of pieces: 16 Tap size: M16 x 1.25 x 70mm Compatible thread size: 14mm x 1.25mm Usage Repair damaged spark plug threads. Enlarge the spark hole to fit the sleeve using the provided taps. Other information Made of hardened steel for strength and durability. All tools are organized in a blow-molded case for easy transport and storage.