Feature:1. Four sizes of thread adapters, suitable for ordinary size glow plugs.2. Fast and effective remedy for damaged cylinder head glow plug threads.3. Complete tools, tap+insert driver+tap guide pin+insert guide rod+knurled head+replacement thread insert (5pcs of each).4. Made of premium steel material, rugged and erosion proof, long service life.5. Built to meet standard specification, strictly follow factory quality control.Specification:Item Type: Glow Plug Thread Repair KitMaterial: SteelColor: As picture shown.Package List:1 x M8x1mm Tap1 x M10x1mm Tap1 x M10x1.25mm Tap1 x M12x1mm Tap1 x M12x1.25mm Tap1 x M14x1.25mm Tap1 x M8x1.0 & M10x1.0 Insert Driver1 x M10x1.25 & M12x1.25 Insert Driver1 x 8x45 Tap Guide Pin1 x 10x45 Tap Guide Pin1 x 12x45 Tap Guide Pin1 x Insert Guide Rod1 x Knurled Head5 x M8x1mm Thread Insert5 x M10x1mm Thread Insert5 x M10x1.25mm Thread Insert5 x M12x1.25mm Thread InsertNote:Please note that the storage box color will be shipped randomly.