The OEM Tools 25643 M14-1.25 Spark Plug Thread Repair Drill is a new, sealed hand tool designed for automotive use. This set includes 5 pieces with a drill size of 9/16″, suitable for metric measurements. The product is manufactured by OEM Tools in Taiwan, offering a reliable solution for repairing spark plug threads in vehicles. Perfect for automotive mechanics and car enthusiasts looking for a high-quality thread repair kit.