Performance Tool Spark Plug Repair Kit
Restore damaged spark plug threads with this repair kit that includes a tapered reamer and stainless steel inserts
M14-1.25 thread size
Tapered reamer replaces the need for a drill bit
Restore threads to the original sizing
Includes:
(1) 4241 HSS Tapered reamer
(3) 503 Stainless steel inserts – 5/16″, 7/16″, and 5/8″ lengths
(1) Install/punch tool






