General description This Recoil RCL38140 Spark Plug Insert Kit is designed for repairing or creating strong threads in various materials, including alloys and composites. It is ideal for fixing damaged threads or strengthening original threads in equipment manufacturing. Made from corrosion-resistant stainless steel, these inserts provide durable and reliable thread reinforcement. The kit simplifies the process of switching between metric and unified thread standards. Technical specifications Insert size: M14.0 Thread pitch: 1.25 Extension length: 1.5 times the diameter Number of inserts: 10 Material: Stainless steel Includes: HSS tap, installation tool, stainless steel inserts, instructions Compatibility and accessories Compatible with materials requiring M14.0 x 1.25 threads Supplied with a sturdy container for storage Installation The kit does not include a tapping drill; use an appropriate drill to prepare the hole before installing the inserts. Use the included HSS tap to create