This is a very efficient, professional and universal set of spark plug thread repair tools, and is a comprehensive tool kit. 10PCS M10 x 1.0 inner thread inserts. Match the intended thread repair kit;.
1Set Spark Plug Thread Repair Tool Accessories with M10x1.0 Thread Inserts
Universal 1Set Spark Plug Thread Repair Tools W/ M12x1.25 Inserts & M14x1.25 Tap
Universal 1Set Spark Plug Thread Repair Tools W/ M14x1.25 Inserts & M16x1.25 Tap
1Set Spark Plug Thread Repair Tool Accessories with M14x1.25Thread Inserts
