General description Recoil 38108 Metric Sparkplug Thread Repair Kit is designed for repairing damaged threads or creating stronger original threads in alloys and composite materials. This kit is particularly useful in original equipment manufacturing and simplifies the changeover from unified to metric threads or vice versa. Technical specifications Thread size: M10.0 - 1.00 Pitch Insert length: 10.0mm Insert diameter: 1 1/2D Material: Corrosion-resistant stainless steel Other information Includes a quality HSS tap, installation tool, precision stainless steel inserts, and instructions. Supplied in a sturdy container.