Performance Tool Spark Plug Rethread Kit — 14mm, Aluminum Head Repair, Multiple Inserts, Model# PRTW83164

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- Designed for repairing damaged spark plug threads in aluminum cylinder heads
- Includes heat-treated 14mm x 1.25 tap for precise thread cutting
- Comes with four insert sizes: 3/8", 7/16", 1/2", and 3/4" for versatile repairs
- Heat-treated alloy steel construction for durability and long service life
- Helps avoid expensive cylinder head replacements
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