25PCS M6 x 1.0mm Thread Repair Insert Kit, Metric Helicoil Kit Compatible Hand T
$11.18
Thread size: M6 X 1.0mm. Thread inserts material: Stainless steel. Thread tap and the drill material: HSS (High-speed Steel). 20PC x Wire thread inserts. To repair a spark plug thread no Pre-drilling is necessary if using the special Spark Plug Tap.
